<prompt> Ukukhiqiza inguqulo eyinkimbinkimbi ngokwengeziwe yalesi sigwebo Isilinganiso se-Estakhrs Material - Geodesic sithuthukiswe imodeli ye-Navier - Stokes equations.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi kakhulu yomusho ithi I-Estakhrs Material - Geodesic equations is developed model of Navier - Stokes equations in an umbrella term, It is relativistic version of NS - equations, Futhi yingakho kubaluleke kangaka. 