Simulation Technology Blog | Flexcompute

Article

Aerodynamic Stall in Aviation - Angle of Attack (AoA)

31 Mar 2022 By CJ Doolittle
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Pilots of fixed-wing aircraft receive training about how to avoid and, if needed, recover from aerodynamic stalls. A stall condition can result in a pilot’s inability to effectively control the aircraft, loss of control (LOC), and is a major safety concern[1]. Training involves intentionally maneuvering the aircraft to induce a stall under a variety of power settings and configurations. The term “aerodynamic stall” or simply “stall” is used to describe a situation in which the airflow around the aircraft wings...

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Article Case Study

XV-15 Tiltrotor CFD Case Study

18 Jan 2022 By Feilin Jia
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Despite a projected 40.3 million flights worldwide in 2020, airplanes actually have a major drawback. To take off, airplanes need to accelerate along a runway to reach the necessary speed to generate lift and become airborne. This limitation sparked the development of helicopters which use rotating rotor blades, instead of fixed-wings, to generate lift. This allows helicopters to take off and land vertically, removing the need for long runways. However, helicopters come with their own restrictions which includes shorter ranges...

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News

Flexcompute raises $22M to accelerate innovation with advanced computing

29 Nov 2021 By Zongfu Yu
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It started in 2006 in Palo Alto, California. Like many graduate students, I woke up late in the morning, long after the clouds from the pacific ocean had dissipated. I would bike two miles across the Stanford campus and spend the rest of the day in the mezzanine of an old building with a lovely view of a quiet courtyard dotted by olive trees. Unlike the rest of Silicon Valley, things were slow here – at least to a graduate...

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News

Philippe Spalart Named Director of Fluid Sciences at Flexcompute

23 Nov 2021 By Zongfu Yu
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We are thrilled to welcome renowned aerospace engineer Dr. Philippe Spalart as a Director of Fluid Sciences at Flexcompute. With his years of extensive experience, there is no one more qualified to head our fluid sciences. Every engineer in aerospace in the last thirty years has heard Philippe’s name, largely thanks to his invention of the SA (Spalart-Allmaras) model in 1992, which has set a precedent across the aerospace community for advanced and accurate modeling with minimal complexity. Philippe’s contribution...

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Tutorial Article

How to Run a Speed Sweep of an Airplane with Flow360 in 15 Minutes

08 Oct 2021 By Qiqi Wang
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In this article, we describe how to run a speed sweep of an airplane using Flow360. A speed sweep analyzes the performance of the airplane when flying at different airspeeds while carrying the same load. Such analysis is useful for determining the most fuel efficient cruise speed, the optimal climb speeds (Vx and Vy), as well as the range of the airplane. This can be done in Flow360 in 15 minutes. We start with the model airplane created using Xfoil...

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