a) Increased, reduced b) Reduced, increased c) Reduced, reduced d) Increased, increased Answer: a Explanation: Thermal efficiency should ...
View QuestionWhich of these models would be the best for flow over a submarine?
a) 3-D Navier-Stokes equation for compressible flow without a turbulence model b) 3-D Navier-Stokes equation for ...
View QuestionCFD can be used to understand the flow behaviour of liquid metal during mould filling. This can be used to ____________
a) Change the mould according to fluid flow b) Choose the best metal c) Improve casting techniques d) Change temperature
View QuestionWhich of these will not be applicable for CFD in naval applications?
a) Propeller Design b) Wind loads c) Lift analysis d) Stability in manoeuvring Answer: c Explanation: Hydrodynamic analysis on ...
View QuestionWhich of these forces will have to be analysed using CFD to improve the aerodynamic performance of a vehicle?
a) Lift b) Drag c) Thrust d) Weight Answer: b Explanation: The drag force is the one which pushes ...
View QuestionThe internal flow analysis of an automobile running based on Otto-cycle will need a ___________ analysis.
a) Transient b) Steady c) Finite difference d) Finite element Answer: a Explanation: The piston inside an internal ...
View QuestionFor which of the following purposes can an automobile company not use the CFD tool?
a) Study heat transfer between its parts b) Increase aerodynamic performance c) Increasing load capacity d) Increasing fuel ...
View QuestionAerodynamics engineers obtain the lift and pressure drag by integrating the ___________ distribution over a surface.
a) Velocity b) Pressure c) Temperature d) Viscosity Answer: b Explanation: Lift force can be obtained by the difference ...
View QuestionThe knowledge of aerodynamic loads on an aircraft is needed for ___________ engineers.
a) Aerodynamic b) Thermal c) Structural d) Avionics Answer: c Explanation: A structural engineer is the one ...
View QuestionThe knowledge of pressure distribution is required for ____________ engineers.
a) Aerodynamic b) Thermal c) Structural d) Avionics Answer: a Explanation: An aerodynamic engineer needs the pressure distribution, vortex ...
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