Turbulent Flow Modeling Quiz

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

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

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

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

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

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

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

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

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

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

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

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)

In large eddy simulation, which scales are resolved

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

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

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

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