No Mesh, No Mess: Repairing Dirty Surfaces with Polygonica

Posted by Julian Toumey on

For CONVERGE CFD simulations, you do not have to generate a volume mesh. The robust and efficient automatic mesh generation algorithm in CONVERGE does the work for you, accelerating your CFD workflow. Even though you do not have to generate a volume mesh, you may need to perform surface repair operations to ensure your CAD surface meets certain requirements. To make the surface repair process even easier, CONVERGE Studio v2.3 (the graphical pre-processor for CONVERGE) includes the Polygonica geometry libraries. With an appropriate license, the Polygonica toolkit is integrated seamlessly into CONVERGE Studio v2.3. You have access to the Coarsen, …

Reciprocating Compressor

Under Pressure: Relief from the Pain of Meshing for Pressure Relief Valve and Reciprocating Compressor Simulations

Posted by Clayton Grow on

As we explore new applications for CONVERGE, we look for products in which the flow and motion might be problematic for other CFD programs to capture. In the past year, we found an application that shared many characteristics with our flagship application, internal combustion engines: the reciprocating compressor. The two applications share a few key components: a cylinder, a piston reciprocating inside it, intake valves, and exhaust valves. In fact, a reciprocating compressor is sort of like an engine in reverse; instead of the volume of the cylinder expanding due to combustion driving the piston, the piston is controlled by …

A Call to Order

Posted by Kelly Senecal on

From the Toward Predictive Combustion blog series A long time ago in a galaxy far, far away… I wrote my last blog! Why has it taken me so long to blog again? Really there’s no excuse, but we at Convergent Science have been busy adding offices, forming partnerships, hosting user conferences, and expanding the CONVERGE user base. One thing that hasn’t changed is our dedication to bringing our users the most accurate CFD software for simulating flow and combustion in complex geometries. An often overlooked concept that is critical to achieving reliable CFD results is order of accuracy. This concept …


Convergent Science Joins the Clean High-Efficiency Diesel Engine VII (CHEDE-VII) Consortium

Posted by Daniel Goscha on

Building on more than 24 years of diesel engine research, the Clean High-Efficiency Diesel Engine VII (CHEDE-VII) Consortium was founded in November 2015 at the Southwest Research Institute. The Consortium is pursuing the world’s most efficient engines in order to meet industry needs in the next 5 to 10 years. The four-year multi-client consortium will consider worldwide markets and the effects of new technologies on these markets. Convergent Science is pleased to announce our membership in the CHEDE-VII Consortium. Dr. Daniel Lee, Vice President at Convergent Science, stated, “We are delighted to be members of CHEDE-VII. Convergent Science looks forward …


CEI India Conference Showcases CONVERGE’s Powerful New Features

Posted by Daniel Goscha on

CEI India will be hosting its second annual user conference in Pune from February 23 through 25. EnSight and CONVERGE users from across the globe will be in attendance. February 23 will be devoted to CONVERGE CFD software. The Automotive Research Association of India, the Indian Institute of Technology Madras, General Electric (GE), Defence Research and Development Organisation, Renault Nissan, and the Indian Institute of Technology Bombay will showcase their work with CONVERGE. In addition, Sarangarajan Vijayraghavan, Senior Research Engineer at Convergent Science, will discuss two topics: the powerful improvements and innovative new features in the recently-released CONVERGE v2.3 as …

CONVERGE CFD, Convergent Science

How Renault Partnered with Universitat Politècnica de València to Develop New Powertrain Concepts Targeting CO2 Reduction – Q&A

Posted by Eliza Magee on

by Matthew Beecham of just-auto As automakers search for novel ways to improve fuel efficiency, technology partnering with universities remain popular. Matthew Beecham spoke to Pascal Tribotté and Frederic Ravet from Renault in France and Francisco Payri and Ricardo Novella from CMT Motores Térmicos at the Universitat Politècnica de València in Spain to learn how industry-academia collaboration can deliver some powerful results. Francisco, as the head of CMT-Motores Térmicos, can you tell us a little about your university department? Of course. Based in Valencia, we are an educational and research centre focussed on advancing combustion engine technology. We’ve been around …

CONVERGE CFD, Convergent Science

Convergent Science Sponsors NACSAE Technical Seminar and Showcases CONVERGE

Posted by Eliza Magee on

Madison, WI (December 11, 2015) – On December 12, the North American Society of Chinese Automotive Engineers (NACSAE) will host a technical seminar titled CFD and its Application in the Automotive Industry at the Bloomfield Hills Library in Detroit. NACSAE is dedicated to providing a social network among Chinese automotive engineers in North America and other regions; promoting effective communication among automotive engineers and related organizations; and contributing to the automotive industry in North America and China. Meizhong Dai, Project Manager at Convergent Science, will present Higher Order Convective Schemes and Flux Limiters and describe new features in CONVERGE version …


Dr. P. Kelly Senecal Receives ASME ICE Division Speaker Award

Posted by Eliza Magee on

Madison, WI (November 19, 2015) – Dr. P. Kelly Senecal, Co-Founder and Vice President of Convergent Science, was awarded the ASME ICE Division Speaker Award for his presentation at the 2014 Internal Combustion Engine Division Fall Technical Conference in Indiana. His presentation was titled Modeling Fuel Spray Vapor Distribution with Large Eddy Simulations of Multiple Realizations. The accompanying paper was co-authored by Eric Pomraning and Saurav Mitra of Convergent Science; Qingluan Xue and Sibendu Som of Argonne National Laboratory; and Siddhartha Banerjee, Bing Hu, Kai Liu, Divakar Rajamohan, and John Deur of Cummins. The award was presented in Houston, Texas, …


Scott Drennan of Convergent Science to Present Gas Turbine Combustor Work with Yanmar at IGTC 2015

Posted by Eliza Magee on

Madison, WI (November 17, 2015) – Scott Drennan, Director of Gas Turbine and Aftertreatment Applications at Convergent Science, will present CONVERGE CFD simulation results at the International Gas Turbine Congress (IGTC) 2015 in Tokyo, Japan, on November 19. His presentation, Combustion and Conjugate Heat Transfer CFD Simulations to Support Combustor Design, will showcase work conducted with Yanmar, a Japanese engine manufacturer focused on sustainability. Results highlight the innovative and versatile capabilities of CONVERGE. Since the Great East Japan Earthquake in 2011, Japan has increased its focus on energy supply strategies. Companies such as Yanmar are using CONVERGE CFD software, which …


Convergent Science Presents Latest CONVERGE Developments at ICSC 2015 in Asia

Posted by Eliza Magee on

Madison, WI (November 16, 2015) – At the upcoming IDAJ CAE Solution Conference (ICSC) 2015 in Japan (November 19), Korea (November 20), and China (November 23-24), Convergent Science will share the latest developments in its CONVERGE CFD software. The conference, hosted by CONVERGE distributor IDAJ, will focus on accurate and efficient CAE/CFD software. In each country, Keith Richards, Vice President and Co-Founder of Convergent Science, will present Introduction of CONVERGE 2.3 and Future Plans, while Dan Lee, Vice President at Convergent Science, will present Advances in CONVERGE for Engine Aftertreatment and Introduction of New Features in CONVERGE Studio 2.3. CONVERGE …