Sam Mousavi – Sam Mousavi Blog

Introduction to Programming in OpenFOAM 12

OpenFOAM 12 continues to redefine what’s possible in CFD by offering cleaner interfaces and robust scalability, particularly for non-Newtonian fluids and specialized boundary conditions. Through custom development and careful code customization, researchers and engineers can incorporate advanced solvers, enhance scalar transport modeling, and optimize performance on HPC clusters. Check out the tutorials, experiment with the GitHub example cases, and take your computational fluid dynamics projects to the next level.

Adding a Scalar Transport Equation to a Custom Solver in OpenFOAM 12

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This tutorial demonstrates how to add a scalar transport equation to a custom OpenFOAM 12 solver, guiding you through code modifications, compiling the solver, and running a test case to visualize the scalar’s evolution. It’s a practical approach for enhancing your CFD simulations with passive scalar fields.

Understanding Liquid-Liquid Phase separation and the Impact of Surfactants: Insights from Our Recent Research

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In my latest research update, we delve into the intriguing role of surfactants in liquid-liquid phase separation. Our study reveals how these molecules accumulate at fluid interfaces, preventing droplet coalescence and stabilizing emulsions. We also explore the modeling of surfactant effects using adsorption isotherms and population balances. This approach allows us to predict the surface area available for surfactant adsorption and quantify its impact on phase separation.

Modeling Oil/Water Emulsion Separation in Batch Systems

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In this insightful exploration, we delve into the intricate world of oil/water emulsion separation through sedimentation-based models. Drawing from foundational work like Stoke’s law to contemporary experimental research, we uncover how mixing conditions, dispersion height, and settler diameter influence separation.

Understanding the von Karman Vortex Street with OpenFOAM 11

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In this blog post, we dive into simulating the von Karman vortex street using OpenFOAM 11. This classic fluid dynamics phenomenon, characterized by swirling vortices, is replicated by placing a cylinder in a channel and analyzing the resulting drag and lift forces. With detailed steps, boundary conditions, and configuration files available for download, this post is a comprehensive guide for anyone looking to explore CFD simulations. Check out our accompanying video for a visual understanding of the velocity field around the cylinder.

Estimating Liquid Binary Diffusivity Coefficients: Simplified Approaches

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When studying the diffusivity of non-electrolyte solutes in liquid solutions, especially at a very dilute level, two main correlations are typically used: the Wilke-Chang correlation, the Hayduk-Laudie correlation. Also, Taylor-Duss suggest an expansion to the mentioned correlations. Wilke-Chang Correlation This method helps to estimate the binary diffusivity of a solute (A) in a solvent (B). …

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Exploring Enhanced Oil Recovery: A Comparative Study of Water and Air Injection with OpenFOAM’s multiphaseInterFoam Solver

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Dive into the fascinating world of Computational Fluid Dynamics (CFD) with our latest exploration into Enhanced Oil Recovery (EOR) techniques using OpenFOAM’s multiphaseInterFoam solver. In this insightful post, we simulate a micromodel fully saturated with oil and subject it to two different EOR strategies: water and air injection. Discover how these fluids interact with the oil, their impact on recovery efficiency, and the complex fluid dynamics at play. Whether you’re a CFD enthusiast or just curious about the science behind oil recovery, join us as we inject a dose of science into this intriguing subject. Ready to see science in action? Let’s get flowing!

Continuous Stirred Tank Reactor (CSTR) Dynamics Simulation

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Abstract Continuous Stirred Tank Reactors (CSTRs) play a pivotal role in the chemical and process industries due to their steady-state operational capabilities. This study delved into the influence of initial temperature on the dynamics of a CSTR system. Focusing on the reaction A+B→P, which follows a second-order rate law, the role of temperature in reaction …

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Two-phase Simulations in a Rectangular Pipe: A Comparison of InterFoam vs. EulerFoam

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An exploration into the intricacies of two-phase flow simulations is presented, with a comparison between multiphaseInterFoam and multiphaseEulerFoam. Their methodologies, applications, and the captivating dance of fluid dynamics visualized through computational results are showcased. Insight into the strengths, limitations, and the dynamic world of fluid interactions is provided for both CFD enthusiasts and beginners.

Visualizing CFD Simulations: A Quick Guide to Plotting Residuals with GNUplot in OpenFOAM

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Explore a streamlined guide to extracting and visualizing residuals from OpenFOAM simulations using GNUplot in both terminal and GUI environments on Ubuntu 22. Dive into a step-by-step walkthrough, from crafting a GNUplot script for data extraction to real-time visualization of your CFD simulation residuals, enhancing your data analysis and decision-making in computational fluid dynamics endeavors.