Skip to content
CFD Flow Engineering

CFD Flow Engineering

  • Home
  • About us
  • Contact
  • Engineering solutions
    • Applications of CFD for Flow Technology
    • Boiler Operation Engineers Training
    • Energy Managers and Auditors Training for BEE
    • Boiler Efficiency Calculations – Direct and Indirect Method
  • CFD Training
    • CFD Software Guide
    • CFD Hardware Guide
    • AI CFD Tools in Flow Analysis
    • CFD Support
    • References
    • Career
  • Flow Heat Calculations
    • Properties of Fluids in CFD Simulations
    • Pressure Drop Through Pipe Calculation
    • Pressure Drop Calculation for Pipe Fitting
    • Gas Fuel Heating Value
    • Calorific Value of coal
    • LMTD for Heat Transfer Calculator
    • Heat Transfer Coefficient for Internal Flow
    • Combustion Calculation for Stoichiometry and Flame Properties
    • Determination of Valve Coefficients
    • Refractories and Insulation Properties
  • Blog
    • CFD Basic and Fluid Flow
    • Combustion and Emissions
    • Battery Thermal Flow and CFD Modelling
    • Mutliphase Flow
    • Turbo-machinery
    • Industrial Applications
    • Flow Physics and CFD of COVID-19
    • Questioners
    • Measurement of Fluid Flow and Heat
    • Boiler Operation and Power Plant Engineering

Effect of Mask on Flow Physics of COVID-19 Transmission

by

Which face mask  is more effective against COVID-19  transmission? By Dr. Sharad N. Pachpute   Flow Physics of Breathing The …

Read more

Categories Flow Physics and CFD of COVID-19

CFD Modeling of Flow Through Valves

by

CFD case studies on Stop Valve, Pressure Reducing Valve, Safety Relief Valve, Valve Cavitation By Dr. Sharad N. Pachpute   …

Read more

Categories Industrial Applications

Flow Through Valves – Industrial Applications

by
E:\Blogger_Image_Turbulent_Aug\CFD_flow_thru-valves\Cover_page_blog.jpg

Industrial Applications of Flow-Through Valves (Part-I) How to Regulate the Fluid Flow using Valves? By Dr. Sharad N. Pachpute   …

Read more

Categories Industrial Applications

Slurry Flows and Its CFD Modelling

by
Application and CFD Analysis of Slurry Flow

What is Slurry Flow and how to do its CFD Modelling? By Dr. Sharad N. Pachpute ( PhD. IIT Delhi)   …

Read more

Categories Mutliphase Flow

Turbulent Heat Transfer and Its CFD Modeling

by

CFD Modeling of Turbulent Heat Transfer: Forced, Natural and Mixed Convection by Dr. Sharad Pachpute Introduction to Heat Transfer Mode …

Read more

Categories CFD Basic and Fluid Flow

10 Common Mistakes in CFD Modeling: How to overcome them?

by
10 Common CFD Mistakes by CFD Enginners

Common 10 Mistakes by CFD Engineers – how to overcome?: incorrect CFD domain, issues in mesh, incorrect CFD models , How to get correct CFD results?

Categories CFD Basic and Fluid Flow

Important Questions for CFD Engineers

by
CFD basic Questions

Topics to be Covered CFD users have to understand the follwoing subject in details : Fluid Mechanics Basic of Computational …

Read more

Categories Questioners

CFD Modeling of IC Engines

by

CFD Modeling of IC Engines Using  Star CCM, FLUENT and OpenFOAM  Scope of CFD Modeling for IC Engine CFD modeling …

Read more

Categories Industrial Applications

Combustion Technologies in IC Engines and Its CFD Modelling

by

Introduction to IC Engine Combustion Internal combustion (IC) engines are widely used in automobiles  and machines for power generation given …

Read more

Categories Industrial Applications

Basics of Emissions and Its Control

by

  Understanding Basics of Emissions and  CFD Modeling  Modeling the Unwanted combustion to understand Environmental Pollution     Introduction to Emissions …

Read more

Categories Combustion and Emissions
Post navigation
Older posts
Newer posts
← Previous Page1 … Page10 Page11 Page12 Next →

Latest News

  • ASME Conference and Expo 2026
  • International Conferences on Battery Technology
  • Current CFD Jobs
  • Guest Lecture for Colleges for Basic to Advance CFD Modelling
  • Internship for graduate students for CFD projects
  • Students Guide for all kind of CFD Project
  • CFD Online Training

Recent Posts

  • CFD Top softwaresWhich CFD tool is the Best for Industry: ANSYS FLUENT or STAR-CCM
  • Parts of sugar factory boilerImportant BOE Questions and Answer for Boiler Types, Operation and Maintenance
  • Industrial Boiler D types DesignIndustrial Boiler Basics,Types, Applications and Design Aspects
  • Flow over A Double Wing AirfoilCFD Modeling of Drag and Lift Coefficients for an Air-foil
  • biomass boiler for power generation from wasteScope of Energy Auditing in Boilers and Power Industries
  • Over gear flow meter working principleOval Gear Flow Meters for Diesel Flow Measurement
  • Design of Industrial BurnerScope of AI Automation for Burner and Furnace Selection
  • Comparison of CFD, experiment and AI toolsBest Tips for Accuracy and Low Cost of CFD Simulations
  • Battery Thermal Flow and CFD Modelling
  • Boiler Operation and Power Plant Engineering
  • CFD Basic and Fluid Flow
  • Combustion and Emissions
  • Flow and CFD of Drone
  • Flow Physics and CFD of COVID-19
  • Industrial Applications
  • Measurement of Fluid Flow and Heat
  • Mutliphase Flow
  • Questioners
  • Turbo-machinery
242
Created on October 30, 2022 By Dr. Sharad Pachpute

Basic of CFD and Fluid Mechanics -QUIZ

Basic of CFD and Fluid Mechanics will be examined

1 / 20

Which of these terms represents the inertia term in the momentum equation

2 / 20

Which of the following is the source term in the momentum equation for natural convection

3 / 20

The staggered grid is useful to overcome 

4 / 20

The outflow boundary condition is used in the CFD domain for the boundary

5 / 20

The continuity equations for incompressible flow (divergence of velocity vector,V)

6 / 20

Which  is essential CFD input to carry out simulation

7 / 20

In CFD modeling, what are the two major types of numerical boundary conditions?

8 / 20

In the first order Updwind scheme, which variation is considered?

9 / 20

How many variables of Boundary conditions are to be specified for 2D flow?

10 / 20

To simulate any laminar flow with any geometry, which of the following equations are solved

11 / 20

For incompressible flow,  dependent variables in the Navier-Stokes equations are

12 / 20

For numerical simulations,  what are the independent variables in the Navier-Stokes equations after discretization?

13 / 20

The momentum equation is based on

14 / 20

A control volume-based model results in which equation?

15 / 20

In post-processing of CFD results, which plots are irrelevant?

16 / 20

The continuity equation is derived based on

17 / 20

For the implicit method, which is the essential step?

18 / 20

Which of the following does not come under the three main elements of CFD modeling?

19 / 20

The region  of interest for CFD analysis is carried is called

20 / 20

CFD is the third pillar for numerical fluid flow analysis. What are the other two traditional approaches?

Your score is

The average score is 51%

LinkedIn Facebook VKontakte
0%

https://www.youtube.com/@CFDFlowEngineering

119
Created on January 24, 2023 By Dr. Sharad Pachpute
heat Transfer modelling

Online Quiz on Heat Transfer

Fundamental questions on Heat Transfer and its numerical modeling are given in this quiz

Email to get the Gift  of the PDF booklet: cfdflowengineering@gmail.com

if you score > 80%:

1 / 21

Which of the following methods is not used to discretize the Radiative Transport Equation for combustion

Thermal radiation in biomass combustion

2 / 21

The radiative Heat transport equation is numerically solved for

Radiative Transport Equation

3 / 21

Radiation heat transfer is determined by which law

radiative heat transfer law

4 / 21

The relation between momentum and thermal boundary layer  is defined by which of the following parameter

Thermal and momentum boundary layers

5 / 21

For turbulent heat transfer over a heated plate, the turbulent diffusivity is determined using

Reynolds number for Flat plate Boundary layer

6 / 21

Heat transfer coefficient in CFD simulation is calculated using

Thermal Boundary layer

7 / 21

what is the unit of heat transfer coefficient?

convective Heat transfer formula

8 / 21

For constant air properties, the forced convective heat transfer rate depends on

Forced convection heat transfer

9 / 21

Convective heat transfer is calculated by which of the reference temperature

convective Heat transfer formula

10 / 21

Thermal conductivity for anisotropic is defined as

11 / 21

Which of the following Laws is based on convective heat transfer between a surface and adjacent fluid

12 / 21

For the homogenous material, the rate of heat transfer normal to the plane wall is given by which of the following equation?

conduction heat Transfer types

13 / 21

The unit heat transfer is given as

14 / 21

which of the following law the heat transfer takes place?

15 / 21

Which of the following is a method of heat transfer?

16 / 21

In natural convection, the source term due to buoyancy  in the energy equation is calculated by

17 / 21

which of the following terms is added to compute turbulent convective transfer in RANS equations

18 / 21

Which of the following radiation models accounts for the effect of flue gas composition on heat transfer

19 / 21

In natural convection, the coefficient of expansion of fluid (β) for an ideal gas is calculated as

20 / 21

To compute the convective heat transfer from the heating surface which numerical scheme is used

21 / 21

To compute the view factor for radiative heat transfer, which radiation model is used in CFD solver

Your score is

The average score is 55%

LinkedIn Facebook VKontakte
0%

57
Created on December 04, 2022 By Dr. Sharad Pachpute

Important Questions on Turbulent Flows Modelling

This quiz will check your basic understanding of turbulent flows.

Questions on turbulent models (RANS and LES)  and DNS are also added  in the quiz.

Try to attempt all the questions.

For any query you can email: cfdflwoengineering@gmail.com

1 / 17

To capture anisotropic Turbulent stress near the curved surface, which of following turbulent model is more suitable

2 / 17

To capture turbulent flow correctly over a circular cylinder with less computational effort, which of following turbulent model is used in RANS family

3 / 17

For two equation k - ω turbulent flow,  ω represents  the following:

4 / 17

In two equation turbulent flow (k-ε), the ε represents

5 / 17

For two equations  (k-ε )turbulent modelling which equations are solved

6 / 17

In the turbulent flow, the shear stress is increased due to

7 / 17

In the turbulent boundary layer of internal pipe flow, the thickness of laminar sublayer is given as  δ

8 / 17

For flow over a flat plate, the boundary layer thickness (δ) for turbulent flow at a distance x with Reynolds number Rex is  directly proportional to

9 / 17

In the turbulent flow, the shear stress is increased due to

10 / 17

The critical Reynolds number for a particular geometry and fluid properties is essential because it determine

11 / 17

The critical Reynolds number defined based on the pipe diameter (D) for flow through a circular pipe for turbulent flow

Reynolds number for flow through a circular pipe

 

12 / 17

For flow over a flat surface, the flow is said to be fully developed turbulent flow when Reynolds number defined on inlet velocity (U) and length from leading edge (L)

 

Reynolds number for Flat plate Boundary layer

13 / 17

In large eddy simulation, which scales are resolved

14 / 17

In LES simulation, which of the following governing equations are solved

15 / 17

In LES simulations, subgrid scales models (SGC) are used to find

 

16 / 17

In Direct Numerical simulation, the cost of the simulation depends on

17 / 17

In a direct numerical simulation (DNS) which governing equations are solved

Your score is

The average score is 42%

LinkedIn Facebook VKontakte
0%

Quiz Questions on CFD Modelling of Combustion

Online Quiz on numerical modeling of combustion is given below

1 / 24

The coal combustion, the two-reaction devolatilization model is used

coal combustion processes
coal combustion processes

2 / 24

In the single first-order reaction (SFOR) devolatilization model, the kinetic rate

kv = Av exp (-Tv/Tp) is determined by

3 / 24

The Arrehunis reaction model is used

4 / 24

The coal combustion, the single reaction devolatilization model is used

5 / 24

A turbulent flame brush is an ensemble of discrete, steady laminar flames which is called as

6 / 24

Turbulent non-premixed flames are modeled  using the mean mixture fraction which is defined as the ratio

7 / 24

Diffusion Flame Models are used only for simulations of 

8 / 24

Which phenomena is not accounted for in non-premixed combustion modeling

9 / 24

Non -premixed Combustion Models is used for 

10 / 24

Which is Turbulent flame Speed for Premixed Flames 

Venturi-Burner-premixed combustion

11 / 24

The premixed combustion is modeled with additional equations apart from mass, momentum, and energy

12 / 24

Turbulent Premixed Combustion Models are applicable for 

13 / 24

Which of the following is an example of Premixed Flames

14 / 24

Which fuel has the highest flammability limits

15 / 24

In boilers and furnaces, which combustion model is suitable to the term of Model Turbulent Chemistry Interaction (TCI) 

Thermal radiation in biomass combustion
Thermal radiation in biomass combustion

16 / 24

In combustion, Slow rate reaction is modeled based on which assumption:

Basic of solid fuel combustion mechanism
Basic solid fuel combustion mechanism

17 / 24

The rate of reaction progress depends on which following variables:

Hydrocarbon combustion reaction

18 / 24

The total enthalpy of combustion of liquid is defined as the sum of 

 

19 / 24

Which of the following statements is true for liquid combustion

20 / 24

The equivalent ratio is defined as the ratio of the following :

 

21 / 24

Combustion is defined by which following reaction

Combustion mixing reaction
Combustion mixing reaction

22 / 24

Combustible substance (fuel) is defined as below

Hydrocarbon combustion reaction

23 / 24

What are the Essential Conditions for Combustion to occur in 

24 / 24

Which is of the following is the first step of solid fuel combustion like coal and wood

Your score is

The average score is 65%

0%

🔥 Boiler Heat Transfer Calculator













Valve Cv Calculator (with Unit Conversion)










Sitemap

Why CFD Flow Engineering

  • Home
  • Applications of CFD for Flow Technology
  • Privacy Policy
  • Disclaimer
  • Terms Use
  • Career
    • Essential CFD Blog Posts

Visitors : 20,69,312

Contact

For support and any query :

cfdflowengineering@gmail.com

info@cfdflowengineering.com

Categories

  • Battery Thermal Flow and CFD Modelling (6)
  • Boiler Operation and Power Plant Engineering (15)
  • CFD Basic and Fluid Flow (18)
  • Combustion and Emissions (35)
  • Flow and CFD of Drone (2)
  • Flow Physics and CFD of COVID-19 (5)
  • Industrial Applications (11)
  • Measurement of Fluid Flow and Heat (10)
  • Mutliphase Flow (3)
  • Questioners (8)
  • Turbo-machinery (7)

Process Engineering Calculations

  • Properties of Fluid in CFD Simulations
  • Y plus Calculation
  • Pressure Drop Through Pipe Calculation
  • Pressure Drop Calculation for Pipe Fitting
  • Basic Heat Transfer Calculations
  • Calculation of Heat Transfer Coefficient for Intenral and External Flow
  • Heat Transfer Coefficient Data
  • LMTD for Heat Transfer Calculator
  • Calculation of Heat Exchanger Design
  • Calorific Value of Coal and Wood Calculations
  • Combustion Calculations-Gas Fuel
  • Combustion Calculation for Stoichiometry and Flame Properties
  • Determination of Valve Coefficients
  • Boiler Efficiency Calculations – Direct and Indirect Method
  • Boiling Heat Transfer Coefficient Calculations
  • Engineering Unit Conversion Factors

Connect With Us

  • Bloglovin
  • Email
  • Facebook
  • Instagram
  • LinkedIn
  • Phone
  • Pinterest
  • YouTube

CFD and Industrial Solutions

  • Consultancy and Technology solutions
  • CFD Support for student
  • Current CFD Jobs
  • Jobs and Opportunity
  • Interesting Flow Technology
  • AI CFD Tools in Flow Analysis

CFD Guide and Training

  • Best CFD Online Course
  • CFD Software Guide
  • CFD Hardware Guidelines
  • CFD Support for student
  • References CFD and Engineering
  • Boiler Operation Engineers Training
  • Applications of CFD for Flow Technology
  • Home
  • About us
  • Contact
  • Engineering solutions
    • Applications of CFD for Flow Technology
    • Boiler Operation Engineers Training
    • Energy Managers and Auditors Training for BEE
    • Boiler Efficiency Calculations – Direct and Indirect Method
  • CFD Training
    • CFD Software Guide
    • CFD Hardware Guide
    • AI CFD Tools in Flow Analysis
    • CFD Support
    • References
    • Career
  • Flow Heat Calculations
    • Properties of Fluids in CFD Simulations
    • Pressure Drop Through Pipe Calculation
    • Pressure Drop Calculation for Pipe Fitting
    • Gas Fuel Heating Value
    • Calorific Value of coal
    • LMTD for Heat Transfer Calculator
    • Heat Transfer Coefficient for Internal Flow
    • Combustion Calculation for Stoichiometry and Flame Properties
    • Determination of Valve Coefficients
    • Refractories and Insulation Properties
  • Blog
    • CFD Basic and Fluid Flow
    • Combustion and Emissions
    • Battery Thermal Flow and CFD Modelling
    • Mutliphase Flow
    • Turbo-machinery
    • Industrial Applications
    • Flow Physics and CFD of COVID-19
    • Questioners
    • Measurement of Fluid Flow and Heat
    • Boiler Operation and Power Plant Engineering
Copyright © 2025CFD Flow Engineering