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Simulation- and data-driven piston bowl design

Explore and optimize piston bowl geometries through parametric geometry variation, automated simulation workflows, and multidisciplinary design studies.

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CAESES Piston Bowl Design GUI

Why choose a simulation- and data-driven design approach?

Accelerated exploration of design concepts

Simulation-driven design enables engineers to evaluate a wide range of piston bowl geometries virtually, identifying promising concepts much faster than traditional iterative development. This accelerates the design process while allowing for more extensive exploration of the design space.

Improved combustion efficiency and emissions

Simulation-based optimization helps refine piston bowl shapes to enhance air–fuel mixing, combustion characteristics, and heat release. This can lead to improved fuel efficiency while reducing emissions such as NOₓ and soot.

Deeper understanding of in-cylinder flow and combustion

Detailed simulations provide insight into complex phenomena such as swirl, tumble, spray interaction, flame propagation, and heat transfer. These insights support more informed design decisions and the development of piston bowls that deliver robust performance across a range of operating conditions.

CAESES’ piston bowl design capabilities

CAESES is a specialized CAD and automation tool for optimizing complex, performance-critical geometries, with some dedicated capabilities that make it particularly suited for the design of cutting-edge piston bowls.

Piston Bowl Design Profile

Unlimited parameterization

Fully user-defined piston bowl parameterizations with no template restrictions.

Use lines, arcs, splines, or any combination to define the exact bowl profile required.

Piston Bowl Design Wave

3D bowl shaping

Circumferential variation of the bowl profile for advanced geometries, including wavy bowl designs.

Piston Bowl Design Variation

Robust geometry variation

100% robust generation of geometry variants through smart parameterization and dependency-based modeling.

Reliable automated design studies with no failed geometry variants.

Piston Bowl Design Compression Ratio

Automatic compression ratio control

Automatic adjustment of every design variant to maintain a target compression ratio.

Flexible optimization workflow with user-defined adjustment variables and configurable order of precedence.

Piston Bowl Design Spray Targeting

Automated design constraints

Automatic adaptation of dependent design parameters, such as spray targeting, to match changing bowl geometries.

Piston Bowl Design Sector

Simulation-ready exports

Geometry export in multiple CAD and CFD formats, including CONVERGE "surface.dat".

Support for patch naming to enable automated assignment of mesh settings and boundary conditions.

Piston Bowl Design Injection Rate

Integrated design studies

Combined optimization of piston bowl geometry, injection strategy, and process parameters.

Direct parameterization of CFD input files and scripts through the Software Connector interface, enabling automated studies of fuel composition, EGR rate, and other operating conditions.

Interested in a specific capability?

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Getting started

FAQs

Can CAESES be customized for company workflows?

Yes. CAESES supports highly customized workflows, templates, and interfaces tailored to specific engineering processes and applications.

What optimization methods are available in CAESES?

CAESES supports parameter studies, sensitivity analysis, single-objective optimization, multi-objective optimization, surrogate modeling, Kriging methods, and neural-network-based response surfaces.

Does CAESES support Linux and HPC environments?

Yes. CAESES is available for Linux and supports batch-mode workflows for HPC and distributed computing environments.