Computational Fluid Dynamics (CFD)

Numerically simulate the physics of all fluid-to-fluid and fluid-to-solid interactions in your design.

Simulate Fluid Interactions

Calculate velocity distribution, density, temperature, heat transfer, pressure drop, flow rates, and fluid distribution.

Verify and Optimize

Simulate fluid distribution in electronics cooling systems to verify desired flow. Ensure your pump or fan can provide enough flow at your system pressure drop.

Avoid Part Failures

Avoid part failures and costly prototype iterations by analyzing system performance using numerical simulation before building and testing a physical prototype.

Capabilities

We provide Computational Fluid Dynamics (CFD) simulation services using ANSYS software to solve complex fluid-related problems numerically and ensure air and liquid flow in your design operate as intended.

Transient or Steady State Analysis

Calculate heat transfer, temperature, pressure drops and flow rates under transient (time-varying) or steady-state conditions.

Fluid Distribution

Simulate velocity distribution, density, temperature, heat transfer, and fluid distribution.

Pressure Drop Analysis

Perform pressure drop analysis, lift and drag in hydrodynamics or aerodynamics, as well as rotating turbomachinery for pumps and turbines.

Electronics Cooling & Packaging

Simulate electronics performance under various heat loads and ambient conditions to ensure components are cooled enough to operate.

Transient or Steady State Analysis

Calculate heat transfer, temperature, pressure drops and flow rates under transient (time-varying) or steady-state conditions.

Fluid Distribution

Simulate velocity distribution, density, temperature, heat transfer, and fluid distribution.

Pressure Drop Analysis

Perform pressure drop analysis, lift and drag in hydrodynamics or aerodynamics, as well as rotating turbomachinery for pumps and turbines.

Turbo Machinery Design

Turbulence modeling. This custom impeller design ensures adequate power from flowing water over a range of flow rates and RPM.

Thermal Management

Thermal management system design, fabrication integration, and test including pumped refrigerant systems, custom vapor compression systems, single and two-phase liquid cooling and air-cooling.

Heat Exchanger Design

Heat exchanger design includes single & two-phase heat exchangers (condensers and evaporators).

Cold Plate Design

Single & two-phase cold plate design, fabrication, integration and test. Design of high-performance microchannel and mesochannel cold plates.

Multiphysics Analysis

Simulating and analyzing multiple physical phenomena that interact with each other, such as fluid flow and heat transfer, or fluid flow and structural deformation.

Electronics Cooling & Packaging

Simulate electronics performance under various heat loads and ambient conditions to ensure components are cooled enough to operate.

Thermal Management

Thermal management system design, fabrication integration, and test including pumped refrigerant systems, custom vapor compression systems, single and two-phase liquid cooling and air-cooling.

Cold Plate Design

Single & two-phase cold plate design, fabrication, integration and test. Design of high-performance microchannel and mesochannel cold plates.

Heat Exchanger Design

Heat exchanger design includes single & two-phase heat exchangers (condensers and evaporators).

Turbo Machinery Design

Turbulence modeling. This custom impeller design ensures adequate power from flowing water over a range of flow rates and RPM.

Multiphysics Analysis

Simulating and analyzing multiple physical phenomena that interact with each other, such as fluid flow and heat transfer, or fluid flow and structural deformation.

Core Software

Analyzing Complex Fluid Flows with CFD

We use physics-based simulations to solve real-world problems in fluid-flow to ensure components meet requirements early in the design cycle, saving you costly and time-consuming prototype iterations.

What is Computational Fluid Dynamics (CFD)?

Computational Fluid Dynamics (CFD) is the analysis of fluid flow and heat transfer phenomena. CFD simulates the interaction of all fluid-to-fluid, fluid-to-solid, and fluid-to-gas contact, and accounts for various fluid properties, such as velocity, pressure, and temperature.

Why Use Computational Fluid Dynamics (CFD)?

Fluid flow analysis is needed when fluid interactions play a critical role in design. CFD is a valuable tool that enhances engineering design decision-making due to its accuracy and cost-effectiveness when compared to testing physical components.

Leverage our Expertise

Andy Johnston P.E., President, and Founder of Johnston Engineering, is considered a subject-matter expert in thermal management, including electronics cooling and packaging, two-phase flow and heat transfer with extensive experience in the analysis of single and two-phase flow (boiling and condensing) in microchannel cold plates and heat exchangers.

With 20+ years of experience in military and aerospace electronics cooling and packaging, Andy brings a wealth of knowledge in the design and analysis of component and system-level thermal, fluid flow, and structural analysis to your project.

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We want to know your needs exactly so we can provide the perfect solution.

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