August 7, 2019 posted by

A simplified design and optimization method of aerospike nozzle contour and the results of tests and numerical simulation of aerospike nozzles are presented. advantages of the aerospike nozzle is the ability to achieve thrust vectoring aerodynamically Figure 1 compares two aerospike-based nozzle designs to their. design strategy. Introduction. A multidisciplinary analytic model of a linear aerospike rocket nozzle has been developed; this model includes predictions.

Author: Goltira Zum
Country: Sao Tome and Principe
Language: English (Spanish)
Genre: Personal Growth
Published (Last): 27 December 2012
Pages: 372
PDF File Size: 4.75 Mb
ePub File Size: 3.78 Mb
ISBN: 963-5-20881-416-5
Downloads: 39873
Price: Free* [*Free Regsitration Required]
Uploader: Kiganris

Width of ramp for linear aerospike nozzles Lramp. Dimensional data for this analysis are based on Boeing’s results for the XRS linear aerospike rocket engine where vacuum thrust and Isp arelbf and The aersopike engine is a type of rocket engine that maintains its aerodynamic efficiency across a wide range of altitudes. Two wall-points, one from the center and one at the end of the nozzle contour have been selected for comparison.

Aerospike engine – Wikipedia

Specify whether the nozzle is 2-D or 3-D by clicking either the 2-D characteristics or 3-D approximation option buttons. Ratio desin specific heats g: In addition, the thruster sonic-section angle 60 degrees to degrees is located in the secondary data entry area. Aerospike nozzle total thrust is computed using the following equations knowing PR and percent truncation.

Aerospije or hide the main data window from view or from being printed. A new company, Firefly Aerospacehas replaced the aerospike engine with a conventional engine in the Alpha 2. For a minimum length nozzle the maximum expansion angle is equal to one-half the Prandtl-Meyer function for the design exit Mach eesign. Skip to search form Skip to main content. The annular aerospike rocket motor pictured above left is a design developed and rendered by Richard Caldwell Rocket Nut intended to producepounds of thrust at sea level.


The Clustered Bell Aerospike Engine: Since this exhaust begins traveling in the “wrong” direction i. Input data for the results in Figure based on data from Figure-9 using AeroSpike version 2.

For pressure desiggn, Pc is the thruster chamber pressure and Pa is the local atmospheric pressure. Send an image of the screen to the printer. From Wikipedia, the free encyclopedia.

However, sometimes nzzle sharp corner at the throat may be impractical. Chamber temperature in either degrees Rankine or degrees Kelvin depending on the units selected.

Multidisciplinary Approach to Aerospike Nozzle Design – Semantic Scholar

It uses carbon composite materials and uses the same basic design for both stages. They announced a flight for August Specify custom or user-defined gases by inserting Ratio of specific heats for exhaust g and Gas constant of exhaust Rgas in the Aerospike Nozzle Data section.

Aerospike Input Data, 1st column. When checked this check box activates base pressure computation for truncated aerospike nozzles where base pressure is included for determination of total aerospike thrust and thrust coefficient.

The exhaust, a aerospiek mix of gases, has an effectively random momentum distribution i. Nozzle Device Component Aerospikd system Mathematical optimization. Note the ablative aerospike nozzle entry-cone that forms the combustion chamber. This causes the thrust-generating exhaust to begin to expand outside the edge of the bell.


Aerospike engine

A straight sonic line is assumed to occur at the throat of the minimum length nozzle. A minimum length nozzle has the smallest possible throat-to-exit length that is still capable of maintaining uniform supersonic flow at the exit. Instead of firing the exhaust out of a small hole in the middle of a bell, an aerospike engine avoids this random aerosipke by firing along the outside edge of a wedge-shaped protrusion, the “spike”, which serves the same function as a traditional engine bell.

Finally, check the Check to Include base thrust check box to include base thrust for the determination of total thrust and thrust coefficient CF for truncated aerospike nozzles.

Rocket Nut’s design uses an untruncated Annular Aerospike ramp as illustrated in Figure The plots in Figure 4 and Figure 5 illustrate the relationship between Patm verses PR and Pb verses Percent Truncation for the computation of base thrust, total thrust and thrust desivn.

This rocket was designed to test several components of their Haas 2CA at a lower cost.

The main data entry area is displayed by default. Added the ability to include base thrust for truncated aerospike nozzles. This work on aerospike engines continues; Prospector, a ten-chamber aerospike engine, was test-fired June 25, Please help improve it or discuss these issues on the talk page.