ANSYS Case Studies Navatek Ltd. Enhances Marine Hydrodynamics with ANSYS CFX

	Navatek Ltd. Enhances Marine Hydrodynamics with ANSYS CFX ANSYS

Navatek Ltd. Enhances Marine Hydrodynamics with ANSYS CFX

ANSYS

Technology Category	Analytics & Modeling - Digital Twin / Simulation Sensors - Liquid Detection Sensors
Applicable Industries	Marine & Shipping
Applicable Functions	Product Research & Development
Use Cases	Digital Twin Virtual Reality
Challenge	Navatek Ltd., a leader in researching, developing, and deploying innovative, advanced ship hull designs and associated technologies, faced a significant challenge in their testing process. The traditional method of scale model testing was proving to be time-consuming, expensive, and unreliable due to scaling effects. The complexity of the physics involved in the processes, including transient, transitionally turbulent, multiphase flow with a free surface, added to the difficulty of obtaining reliable and accurate results. This situation necessitated a more efficient, reliable, and cost-effective solution for testing their ship hull designs. Read More
About Customer	Navatek Ltd., founded in 1979 and based in Honolulu, is a leader in the field of marine hydrodynamics. The company specializes in researching, developing, and deploying innovative, advanced ship hull designs and associated technologies for both military and commercial use. Navatek holds multiple U.S. patents relating to its underwater lifting body hull technology and is also known for its work in Computational Fluid Dynamics (CFD) hull optimization, drag reduction, and integrated propulsion systems. The company's technology prototypes have demonstrated benefits including better sea kindliness, increased range and payload, reduced power requirements, higher seaway speeds, and reduced wake wash. Read More
Solution	Navatek Ltd. turned to ANSYS CFX for a solution to their testing challenges. ANSYS CFX offers reliable multiphase flow models which allow for the prediction of free surface shape, forces, and effects due to cavitation. The simulation results obtained from ANSYS CFX have been validated against towing-tank experiments and have shown excellent agreement. Additionally, CFX-Mesh allows for highly-automated, rapid creation of high-quality meshes with an inflation layer that ensures excellent near-wall resolution. This solution not only improved the reliability and accuracy of their testing process but also allowed for the rapid completion of what-if scenarios, providing valuable insight into design variations such as appendage placement. Read More Log in to view content
Contents

Technology Category

Analytics & Modeling - Digital Twin / Simulation

Sensors - Liquid Detection Sensors

Applicable Industries

Marine & Shipping

Applicable Functions

Product Research & Development

Use Cases

Digital Twin

Virtual Reality

Challenge

Navatek Ltd., a leader in researching, developing, and deploying innovative, advanced ship hull designs and associated technologies, faced a significant challenge in their testing process. The traditional method of scale model testing was proving to be time-consuming, expensive, and unreliable due to scaling effects. The complexity of the physics involved in the processes, including transient, transitionally turbulent, multiphase flow with a free surface, added to the difficulty of obtaining reliable and accurate results. This situation necessitated a more efficient, reliable, and cost-effective solution for testing their ship hull designs.

About Customer

Navatek Ltd., founded in 1979 and based in Honolulu, is a leader in the field of marine hydrodynamics. The company specializes in researching, developing, and deploying innovative, advanced ship hull designs and associated technologies for both military and commercial use. Navatek holds multiple U.S. patents relating to its underwater lifting body hull technology and is also known for its work in Computational Fluid Dynamics (CFD) hull optimization, drag reduction, and integrated propulsion systems. The company's technology prototypes have demonstrated benefits including better sea kindliness, increased range and payload, reduced power requirements, higher seaway speeds, and reduced wake wash.

Solution

Navatek Ltd. turned to ANSYS CFX for a solution to their testing challenges. ANSYS CFX offers reliable multiphase flow models which allow for the prediction of free surface shape, forces, and effects due to cavitation. The simulation results obtained from ANSYS CFX have been validated against towing-tank experiments and have shown excellent agreement. Additionally, CFX-Mesh allows for highly-automated, rapid creation of high-quality meshes with an inflation layer that ensures excellent near-wall resolution. This solution not only improved the reliability and accuracy of their testing process but also allowed for the rapid completion of what-if scenarios, providing valuable insight into design variations such as appendage placement.

Impact #1	The implementation of ANSYS CFX has brought about significant operational improvements for Navatek Ltd. The use of CFD simulation has reduced the need for expensive towing tank tests, allowing the company to investigate more design alternatives in a cost-effective manner. The ability to rapidly complete what-if scenarios has provided valuable insight into design variations such as appendage placement, leading to the creation of hulls that perform better in all key areas. Furthermore, the high-quality meshes created by CFX-Mesh have ensured excellent near-wall resolution, enhancing the accuracy and reliability of the testing process.

Impact #1

The implementation of ANSYS CFX has brought about significant operational improvements for Navatek Ltd. The use of CFD simulation has reduced the need for expensive towing tank tests, allowing the company to investigate more design alternatives in a cost-effective manner. The ability to rapidly complete what-if scenarios has provided valuable insight into design variations such as appendage placement, leading to the creation of hulls that perform better in all key areas. Furthermore, the high-quality meshes created by CFX-Mesh have ensured excellent near-wall resolution, enhancing the accuracy and reliability of the testing process.

Benefit #1	Reduced time and cost associated with scale model testing
Benefit #2	Increased reliability and accuracy of testing results
Benefit #3	Rapid completion of what-if scenarios for design variations

Benefit #1

Reduced time and cost associated with scale model testing

Benefit #2

Increased reliability and accuracy of testing results

Benefit #3

Rapid completion of what-if scenarios for design variations

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Overview

Navatek Ltd. Enhances Marine Hydrodynamics with ANSYS CFX

Operational Impact

Quantitative Benefit