Laser and Imaging Systems for the Study of High-Temperature Laminar Flames in Shock Tubes

Abstract

The Hanson Research Group at Stanford University proposes to acquire laser and imaging equipment in the following two categories to enable transformational advances in state-of-the-art studies of the speed and structure of laminar flames at high-temperature, engine-relevant conditions: 1. High-Energy Pulsed Laser for Igniting Laminar Flames in a Shock Tube 2. Imaging and Laser Systems for Multi-Spectral, Multi-Species Imaging of Flame Structure The proposed equipment will have an immediate impact on the pace of combustion research by supporting the highest-ever-temperature studies of laminar flames, covering the entire engine-relevant regime of temperatures. Preliminary studies performed by the Hanson Research Group have already provided a demonstration of the proposed methods and evidence supporting the utility of the proposed diagnostics, substantially reducing the risk associated with the proposed investment of Army resources. The work made possible by the proposed equipment promises to deliver substantially expanded datasets for the validation of predictive combustion models at Army-relevant conditions. The experimental capabilities provided by the equipment proposed here will also serve to maintain StanfordÕs and the United StatesÕ leadership position in developing advanced experimental methods to study the combustion phenomena of greatest importance to practical engine applications. The availability of detailed measurements of high-temperature flame structures with the aim of understanding dominant physical processes will permit DoD scientists and engineers to better understand complex combustion phenomena and apply this knowledge to the improved design and operation of next-generation energy and propulsion systems. Moreover, the proliferation of the novel experimental methods to other world-class laboratories, as demonstrated through the adoption of numerous previous Hanson Research Group innovations, will deliver a high return on investment in line with the ArmyÕs stated goal of achieving reduced logistics burdens through improved efficiency and enhanced insensitivity to inadvertent ignition in next-generation propulsion systems.

Document Details

Document Type
DoD Grant Award
Publication Date
Jul 09, 2020
Source ID
W911NF2010068

Entities

People

  • Ronald Kent Hanson

Organizations

  • Army Contracting Command
  • Stanford University
  • United States Army

Tags

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Economics
  • Research Science/Academic Research

Technology Areas

  • Directed Energy