Walters Named ASME Fellow for Work That Helps Engineers Design Around Turbulence 

Before a jet engine is ever built, it is flown thousands of times inside a computer. Each simulation must reckon with turbulence, the churning, chaotic motion of air and water that no equation has fully solved. So, engineers rely on mathematical models that approximate turbulence closely enough to design around it. 

Keith Walters, professor and associate department head for graduate programs in the Department of Mechanical Engineering at the U of A, spent three decades building those models. Some of his work is built into commercial simulation software used by engineers around the world. Examples include the k-kL-w turbulence model, which was originally published in 2008 in the ASME Journal of Fluids Engineering, and which represented the first single-point Reynolds-averaged Navier-Stokes turbulence model specifically developed to include the physics of laminar-to-turbulent boundary layer transition. The model has since been incorporated into a number of commercial and open source CFD solvers including Ansys FLUENT and OpenFoam, and is widely used by CFD practitioners around the world. 

The American Society of Mechanical Engineers (ASME) has elected Walters as an ASME Fellow.

Being named an ASME Fellow is one of the highest honors bestowed by the American Society of Mechanical Engineers (ASME). The distinction recognizes engineers who have made exceptional contributions to research, education, innovation and leadership within the engineering profession. Election to fellow status reflects peer recognition of a sustained record of significant achievements and impact in the field of mechanical engineering.

In addition to being named an ASME Fellow, Walters received ASME's Dedicated Service Award, which recognizes exceptional voluntary service and leadership within the society. The award honors members whose sustained commitment and contributions have had a lasting impact on ASME and the broader engineering community.

"I am honored to be named an ASME Fellow and to receive the Dedicated Service Award, and I am grateful for the opportunity to contribute to a field that continues to improve lives through innovation and education."

Research, Professional Service and Educational Impact of Walters

Walters has built a distinguished career spanning over three decades in mechanical engineering, with a primary focus on computational fluid dynamics (CFD). His research has advanced both fundamental theory and real-world applications across areas such as turbulence modeling, aerodynamics, heat transfer and biological systems. He has led and contributed to numerous large-scale, externally funded projects supported by agencies like NSF, NASA and the Department of Defense, managing over $8 million in research funding and playing key leadership roles in multi-institution collaborations.

Walters' scholarly impact is reflected in his extensive publication record, including dozens of journal articles and conference papers, many of which are highly cited. His work has not only influenced academic research but has also been integrated into widely used engineering software, demonstrating practical significance. His contributions have earned him major recognitions, including the NSF CAREER Award and multiple ASME honors.

Beyond research, Walters has made substantial contributions to the engineering profession through longstanding service with the American Society of Mechanical Engineers (ASME). Since joining in 1995, he has played key roles in conference organization, technical committees and journal leadership. His service includes chairing major conferences, leading technical divisions and ultimately serving as editor-in-chief of the Journal of Fluids Engineering. These efforts highlight his commitment to advancing the profession and supporting the engineering community.

Walters has also had a profound impact on education and workforce development. As a faculty member and administrator, he has taught a wide range of undergraduate and graduate courses, consistently receiving high teaching evaluations. He has mentored numerous graduate and undergraduate students, many of whom have gone on to successful careers in academia, government and industry. In addition, his outreach efforts—such as teacher training programs and high school instruction—have helped promote engineering education to broader audiences.

"Being named an ASME Fellow is a milestone that highlights not only technical expertise but also recognizes lasting contributions as an educator and mentor," said Steve Tung, head of the Department of Mechanical Engineering. "The entire department congratulates Keith on this incredible honor." 

His body of work is further exemplified by a series of highly influential publications, including foundational papers in turbulence modeling, film-cooling physics and hybrid simulation methods. Many of these works are among the most cited in their respective journals and have shaped modern CFD practices used by researchers and engineers worldwide.

Overall, Walters' career reflects a combination of impactful research, dedicated professional service and meaningful contributions to education. His work has advanced engineering knowledge, influenced industry practices and helped develop the next generation of engineers.

About the College of Engineering:  The University of Arkansas College of Engineering is the state's largest engineering school, offering graduate and undergraduate degrees, online studies and interdisciplinary programs. It enrolls more than 4,700 students and employs more than 150 faculty and researchers along with nearly 200 staff members. Its research enterprise generated $47 million in new research awards in Fiscal Year 2025. The college's strategic plan, Vision 2035, seeks to build the premier STEM workforce in accordance with three key objectives: Initiating lifelong student success, generating transformational and relevant knowledge, and becoming the destination of choice among educators, students, staff, industry, alumni and the community. As part of this, the college is increasing graduates and research productivity to expand its footprint as an entrepreneurial engineering platform serving Arkansas and the world. The college embraces its pivotal role in driving economic growth, fueling innovation and educating the next generation of engineers, computer scientists and data scientists to address current and future societal challenges.