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Introducing The EXN/Aero Theory Manual

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Envenio has officially unveiled the theory manual for its affordable cloud based CFD solver, EXN/AeroThe theory manual aims to provide the user with details regarding both the theoretical set-up of the software, as well as describing the equations of fluid flow solved by EXN/Aero. 

With more and more software engineers making use of the on-demand, cloud-based solver, including a number of international clients, the team is keen to promote its best practice. This theory manual is just one way that users can be sure they are making full use of EXN/Aero, enjoying the flexibility and full capability provided by this exciting solver.

The theory guide is easily accessible online, and has been split into easy-to-follow sections. Written by the Envenio development team, the theory manual not only provides new users with an overview of EXN/Aero-solved equations, but is also a useful reference to ensure long-term users get the most out of the solver.

The EXN/Aero solver utilizes a hybrid multiblock approach where structured and unstructured mesh regions are concurrently solved in their native data format, preserving the inherent benefits of each type. This allows EXN/Aero to better exploit CPU and GPU resources, playing to the strengths of a heterogeneous compute architecture layout.

EXN/Aero’s true multiblock approach also allows the user to specify the computational precision of each block. In this way, double precision can be applied only where it is needed (e.g. boundary layers), while other areas of the mesh operate in single precision (e.g. far-field mesh). This approach minimizes the memory footprint and increases performance relative to an all-or-nothing double precision approach.

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Fig. 1 Screenshot of Theory Manual

"We are absolutely committed to ensuring our users get the very most out of our EXN/Aero solver, able to best utilize the key features we have worked hard to provide. This theory manual is a vital tool in the EXN/Aero user's toolkit, facilitating the efficient use of EXN/Aero, and improving the user experience" says Dr. Andrew Gerber, one of Envenio's founders.

Split into easy-to-navigate sections, the theory manual covers:

  • Solver Capabilities
  • Database Format for Input & Output
  • EXN/Aero Concept Definitions
  • Documentation Conventions
  • Definition Variables
  • Basic Equations of Fluid Flow
  • Equations of State
  • Turbulence RANS Modeling 
  • The Large Eddy Simulation Technique
  • When to use LES/DES
  • Multiphase Flows
  • Initial Conditions
  • Boundary Conditions
  • Time Discretization
  • Guidelines for the Efficient Use of EXN/Aero

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Fig. 2 Screenshot of Theory Manual

The theory manual can be viewed in full by clicking here. More information about EXN/Aero can be found by clicking here.

An accompanying user manual can also be viewed by clicking here.

Try EXN/Aero For Yourself

Combining a powerful CFD solver with the ability to access it on the cloud and the ability to pay only for what you use enables you to compete, grow, and better manage your cash-flow. Many users run a test case to get a sense of the interface, workflow, and speed up, if you are interested please click here.

2017-06-6 | Categories: CFD, simulations, HPC