Multiphysics Simulation

Fluid flow analysis , Combustion Modeling, Multiphase, FSI, Aero acoustics, performance enhancement

In traditional engineering, each physical phenomenon is often analyzed independently. However, real-world problems rarely occur in isolation. Multiphysics simulation bridges this gap by enabling the simultaneous simulation of multiple interacting physics within a single model. This allows technology leaders to capture the true essence of complex engineering challenges and achieve more accurate and reliable results.Our CFD, FEA & DEM engineers form strong synergy to develop this cutting-edge approach of Modeling & Simulation. Highlighting the potential with two technologies of CFD-FEA and DEM-FEA coupling. Combining CFD & FEA complex interplay between fluids and structures can be simulated to get valuable insights in problems like fluid-structure interaction (FSI)While coupling of DEM-CFD models the behavior of granular materials interacting with structures. Gain a deeper understanding of stress distribution, particle flow, and potential equipment wear.

Fatigue Failure Analysis
DEM-FEA Coupling
CFD-DEM coupling

Fatigue Failure Analysis

Tridiagonal simulates the complex interplay between fluids and structures. Often, the motion of fluids causes vibrations in structures. If the forcing frequency caused by fluid motion resonates with the natural frequency of the structure, it may lead to structural failure. To identify the magnitude of forces or frequencies, Computational Fluid Dynamics (CFD) is essential. Our experts calculate total deformation and von Mises stresses by considering the pressure calculated using CFD. We analyze fluid-induced stresses, vibrations, and other dynamic effects. Our engineers have analyzed equipment such as spargers, Liquid Seal Drums, Heat Exchangers, Feed Pipes, Distillation Column Piping, and Refinery Piping Support Failures.

DEM-FEA Coupling

Tridiagonal specializes in the coupled simulation of Discrete Element Method (DEM) and Finite Element Analysis (FEA), offering detailed insights into the interaction between particulate materials and structural components. By integrating DEM with FEA, we accurately model the behavior of granular materials and their impact on structural integrity, essential for applications in the oil and gas industry. Our simulations provide precise predictions of stress distribution, deformation, and wear within equipment subjected to particle interactions. This coupled approach is vital for optimizing the design and durability of critical components such as pipelines, separators, and drilling equipment. With our expertise in DEM-FEA coupling, we help clients enhance operational efficiency, safety, and longevity of their assets.

CFD-DEM coupling

LS-DYNA is the industry’s leading explicit FEA package, featuring robust default settings, “one model, one code” reuse across physics, and optimized parallel performance. It excels in applications ranging from automotive crashworthiness and aerospace bird-strike to civil engineering seismic response and oil & gas sloshing.

Explicit simulation via LS-DYNA is indispensable wherever structural events involve rapid, severe loading and highly nonlinear geometry or materials. Its robust direct‐integration approach, coupled with industry-leading solver performance and extensive physics capabilities, makes it the gold standard for automotive, aerospace, civil, oil & gas, and manufacturing applications

Use Cases

Despite of ever-evolving industries and complex value chains, digital engineering and experimental methods remain key to solving design, operational, and scale-up challenges. The following use cases highlight the application of Advanced Modeling & Simulation and Experimental Lab Scale-up in solving critical problems across diverse domains.