The aerodynamics of smoke particle sampling

Details The aerodynamics of smoke particle sampling The aerodynamics of smoke particle sampling

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005esasp.590..145h&link_type=abstract

In: 17th ESA Symposium on European Rocket and Balloon Programmes and Related Research, 30 May - 2 June 2005, Sandefjord, Norway.

Computer Science

Earth Mesosphere, Smoke Particles

Scientific paper

There is a great interest in nanometer-sized particles in the mesosphere at the moment with the recent launches of the MAGIC and ECOMA payloads. However, rocket-borne measurements of these particles are far from trivial. Since rocket payloads move through the measurement volume with supersonic speeds they can introduce aerodynamic perturbations that complicate the collection of e.g. smoke particle measurements in this region. Nanometer-sized particles tend to follow the gas flow around the payload and do not reach the detector if the aerodynamic design of the instrument has not been considered carefully. The analysis is further complicated by the fact that the payload moves from continuum flow conditions to free molecular flow conditions via the transition regime. Therefore, aerodynamics simulations are of critical importance for the success of these projects. To simulate the gas flow around the rocket payload a Direct Simulation Monte Carlo program is used. A simple model has been developed to introduce smoke particles in the gas flow and determine their trajectories. The result from this is a specific lower limit to the size of smoke particles detectable by various detector designs.

Affiliated with

Also associated with

No associations

Rating

The aerodynamics of smoke particle sampling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The aerodynamics of smoke particle sampling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The aerodynamics of smoke particle sampling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-954227