KHALIFA MOHAMMAD HELAL. A FORMULATION OF THE DIFFERENTIAL CONSTITUTIVE EQUATION OF OLDROYD-B FLUID AND WRITING PROGRAMMING CODE IN FREEFEM++ TO SOLVE IT BASED ON FINITE ELEMENT METHOD CONSIDERING TWO AUXILIARY NAVIER-STOKES AND TRANSPORT PROBLEMS. Researchers World - International Refereed Social Sciences Journal, [S. l.], v. 4, n. 2, p. 33–42, 2021. Disponível em: https://www.researchersworld.com/index.php/rworld/article/view/1029. Acesso em: 16 may. 2024.