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Kuiga kwa Namba Moja kwa Moja

Uchanganuzi wa Namba wa moja kwa moja (DNS) ni mbinu ya kukokotoa ambayo hutatua milinganyo ya Navier-Stokes bila miundo ya msukosuko, ikitatua mizani yote ya mwendo kutoka kwa mawimbi makubwa yanayoshikilia nishati hadi mizani midogo kabisa ya kutawanya (Kolmogorov microscales). Iliyobuniwa na Steven Orszag mwaka 1971, DNS hutoa taarifa kamili kuhusu uga wa mtiririko wenye msukosuko na hutumika kama suluhisho la marejeleo kwa kuthibitisha miundo ya msukosuko. Hata hivyo, mahitaji makubwa ya kukokotoa huzuia DNS kwa jiometri rahisi na namba za chini hadi za wastani za Reynolds.

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Vyanzo

  1. Orszag, S. A. (1971). Numerical simulation of incompressible flows within simple boundaries: accuracy. Journal of Fluid Mechanics, 49(1), 75-112. DOI: 10.1017/S0022112071001940
  2. Moin, P., & Mahesh, K. (1998). Direct numerical simulation: a tool in turbulence research. Annual Review of Fluid Mechanics, 30, 539-578. DOI: 10.1146/annurev.fluid.30.1.539
  3. Kim, J., Moin, P., & Moser, R. (1987). Turbulence statistics in fully developed channel flow at low Reynolds number. Journal of Fluid Mechanics, 177, 133-166. DOI: 10.1017/S0022112087000892

Jinsi ya kunukuu ukurasa huu

ScholarGate. (2026, June 3). Direct Numerical Simulation. ScholarGate. https://scholargate.app/sw/fluid-dynamics/direct-numerical-simulation

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ScholarGateDirect Numerical Simulation (Direct Numerical Simulation). Imepatikana 2026-06-15 kutoka https://scholargate.app/sw/fluid-dynamics/direct-numerical-simulation · Seti ya data: https://doi.org/10.5281/zenodo.20539026