Aerospace

Supersonic Unmanned Aerial Vehicles Close To Becoming Reality

January 30, 2013

Overcoming the curse of dimensionality in hypersonic design

May 19, 2012

CFD methods and visualization helping researchers take the boom out of supersonic flight

August 3, 2010

Studying the complex flow physics of dragonfly flight

December 1, 2009

Understanding the flow physics of coolants

October 12, 2007

Figure 1: Temperature on the surface on an unloaded, cooled blade, along with streamlines of the main flow and the coolant.

Tecplot Focus helps probe manufacturer showcase technology and sell products

May 30, 2006

Tecplot 360 helps SpaceX plot a course to space and back

February 2, 2006

Plot of the month: Cart3D simulation of shuttle debris

September 5, 2003

Using Tecplot 360, foam debris trajectory from NASA's Cart3D simulation package is visualized. A 1.67 pound slab of insulating foam is seen falling off the external tank after Columbia's launch and hitting the left wing. The Columbia Accident Investigation Board (CAIB) has identified a debris event like this as the most likely cause of the Columbia disaster. This image was used in the CAIB's final report.

NASA CFD software helps quiet the skies

March 16, 2003

Figure 1: Noise sources in a jet plume visualized with Tecplot. The jet plume originates from a bypass ratio (BPR) typical of a transport aircraft. Noise sources are shown in a 12,500 Hz frequency band (sub-scale) with the observer at 88 degrees to the inlet. The data set has about 35 variables at 17 million cells.

Bypass ratio relates the size of the fan stream to the size of the core stream. The inner core stream consists of hot, high velocity gas passed through the jet engine combustor. The outer fan stream consists of cooler, lower velocity air pulled into the engine via the fan.

There are numerous frequencies of noise. The human ear is sensitive to noise from 20Hz - 20kHz. When full scale (9 times larger), the noise shown in the plot would be about 1400Hz, in the range of noise that annoys people.

The observer (or a microphone) can be at numerous angles relative to the jet engine. The inlet angle is measured from the front of the engine. Zero would be pointing ahead, 90 degrees to the side, and 180 degrees points downstream in the direction of the jet exhaust.

Plot of the month: Docking with the International Space Station

December 25, 2002

Figure 2: The ISS moves into position for docking with Space Shuttle Endeavour (STS-97). Most of the station's components are visible in this image. The space station in the plot is the same as in this image (12/2000).

Aerospace

Supersonic Unmanned Aerial Vehicles Close To Becoming Reality

Overcoming the curse of dimensionality in hypersonic design

CFD methods and visualization helping researchers take the boom out of supersonic flight

Studying the complex flow physics of dragonfly flight

Understanding the flow physics of coolants

Tecplot Focus helps probe manufacturer showcase technology and sell products

Tecplot 360 helps SpaceX plot a course to space and back

Plot of the month: Cart3D simulation of shuttle debris

NASA CFD software helps quiet the skies

Plot of the month: Docking with the International Space Station

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