Non-Linear Optimization SQP Technique in Multiphase Flow: Determination of Spinodal Points inEquation of State - Softcover

Tiwari, Ashutosh; Awasthi, Deepak; Gupta, Rajive

Softcover

ISBN 10: 6204207342 ISBN 13: 9786204207346

Verlag: LAP LAMBERT Academic Publishing, 2021

Inhaltsangabe

Multiphase fluid flows have applications in natural, scientific, and engineering systems. In today’s scenario, it is very important to have an analysis of multiphase fluid flows for which Lattice Boltzmann law is used. For this, the second-order D2Q9 LBM model is used. Also for accurate analysis, the higher-order LBM models are used. During the analysis of multiphase fluids, a piecewise linear equation of state is adopted for nonideal fluids in which two equations are used for defining the mechanical and chemical equilibrium. Both the equation possesses two roots usually referred to as spinodal points. In the present work for getting these spinodal points, the two equations have been simultaneously solved with the help of a nonlinear programming method called Sequential Quadratic Programming (SQP). The code has been developed in MATLAB. The spinodal points for few cases available in the literature have been obtained with higher accuracy using the above optimization method. A parameter that tunes mechanical stability conditions for multiphase fluid flow has been estimated using the second-order regression analysis.

Details zur Ausgabe

• Verlag: LAP LAMBERT Academic Publishing
• Erscheinungsdatum: 2021
• Sprache: Englisch
• ISBN 10: 6204207342
• ISBN 13: 9786204207346
• Einband: Tapa blanda
• Anzahl der Seiten: 52
• Kontakt zum Hersteller: Nicht verfügbar
• Verantwortliche Person: Nicht verfügbar