### Discussion :: GATE Exam Questions - Section 1 (Q.No.24)

Divya Joshy said: (Aug 26, 2014) | |

Sum of partial derivative of you with respect to x and partial derivative of v with respect to y is zero for incompressible flow of fluid. |

Dileep Barnwal said: (Sep 22, 2014) | |

Velocity scalar function dQ/dx = u = dW/dY velocity stream function. => W=y*y*y/3 + 2xy*y. Also, dQ/dY = v = -dW/dX = -2y*y. Option C is correct. |

Ritesh Kumar said: (Sep 13, 2015) | |

Apply continuity equation. |

Rihaan said: (Aug 25, 2016) | |

I didn't get it, please explain me once. |

Pran said: (Sep 17, 2016) | |

Please explain me again. |

Minakshi said: (Jan 4, 2017) | |

Not getting this, Please explain me again. |

Denny said: (Jan 9, 2017) | |

du/dx + dv/dy = 0. Appy that then you'll get -2y^2. |

Siva said: (Nov 22, 2017) | |

I did not understand this. Please, anyone explain. |

Sheela said: (Dec 17, 2017) | |

I didn't understand. Please anyone help me. |

Geethu said: (Mar 23, 2019) | |

Du/dx +dv/dy = 0. D/dx (y^2 +4xy) + d/dy (v-unknown) = 0, 4y + d/dy (v-unknown) =0, d/dy (v-unknown) = - 4y, Integrate on both sides wrt y. V= - 2y^2. |

Sheela said: (Jan 27, 2020) | |

Thanks @Geethu. |

Phanindra said: (Jan 30, 2020) | |

Good explanation. Thanks @Geethu. |

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