The Navier-Stokes equation plus con

The Navier-Stokes equation plus continuity equation are extremely important, but extremely difficult to solve. With possible further force terms on the right, they represent the behaviour of gaseous stars, the flow of oceans and atmosphere, the motion of the earth’s mantle, blood flow, air flow in the lungs, many processes of chemistry and chemical engineering, the flow of water in rivers and in the permeable earth, aerodynamics of aeroplanes, and so forth.... The difficulty of solution, and there are probably no more than a dozen or so solutions known for very simple geometries, arises from:

Hasil (Bahasa Indonesia) 2:

Persamaan Navier-Stokes ditambah persamaan kontinuitas sangat penting, tapi sangat di FFI kultus untuk memecahkan. Dengan kemungkinan hal kekuatan lebih lanjut di sebelah kanan, mereka mewakili perilaku bintang gas, fl ow dari lautan dan atmosfer, gerakan mantel bumi, aliran darah, udara fl ow di paru-paru, banyak proses kimia dan kimia teknik, aliran air di sungai dan di bumi permeabel, aerodinamika pesawat terbang, dan sebagainya .... The di FFI culty dari solusi, dan ada mungkin tidak lebih dari selusin solusi dikenal geometri yang sangat sederhana, muncul dari: