To consider this derivation, for incompressible flow, we can say that Dell U by Dell X equal plus Dell V by Dell Y 0. So it's a linear deformation zero for incompressible flow.
இந்த derivation-ல consider பண்ண incompressible flow-க்கு, Dell U by Dell X equal plus Dell V by Dell Y 0-க்கு சமம்-ன்னு சொல்லலாம். அப்போ incompressible flow-க்கான linear deformation zero-வா தான் இருக்கும்.