Ans: If Ma is less than about 1/3, the flow(not fluid) may be approximated as incompressible.Whereas, if density of the fluid does not change due pressure and temperature variation then the fluid is called as incompressible fluid.

Thermodynamics ForumJun 18, 2021What is work producing device and what is work consuming device according to thermodynamics?0 comments0Views

Thermodynamics ForumMay 05, 2022What is an exact differential and what is an inexact differential?0 comments0Views

Thermodynamics ForumJul 01, 2022What is the difference between Nusselt number and Biot number?0 comments0Views

Thermodynamics ForumJul 22, 2022Equation of streamline from velocity components - GATE ME '060 comments0Views

Thermodynamics ForumJul 11, 2022What is Dittus-Boelter equation? What are the assumptions and limitations of the Dittus-Boelter equation?0 comments0Views

Thermodynamics ForumDec 08, 2022What is the relation between average velocity and maximum velocity in fully developed laminar pipe flow? 0 comments0Views

Thermodynamics Forum2 minBest online resources to study Thermodynamics, Fluid Mechanics, and Heat TransferI have been researching about best reference books, best lecture series, and best universities to study thermal sciences since I was in...

Thermodynamics Forum1 minApproximate Values of Heat Transfer CoefficientThe higher the value of heat transfer the faster will be the heat transfer according to Newton's law of cooling.

Thermodynamics Forum1 minVolumetric Flow Rate - 5W1HIt is a measure of the quantity of the fluid that is being displaced from one place to other. This is an important parameter when designing

Thermodynamics Forum4 minThrottling ProcessThe pressure drop in the thermal system can be obtained by expanding the fluid in the expansion valve which produces thermodynamic work.

Thermodynamics Forum3 minPath Function vs Point FunctionWe come across a lot of properties and functions in Thermodynamics. These are divided mainly into path functions and point functions. All...

Thermodynamics Forum2 minThe Carnot PrinciplesThe efficiency of an irreversible heat engine is always less than the efficiency of a reversible engine operating between the same two