Extension and application of a scaling technique for duplication of in-flight aerodynamic heat flux in ground test facilities

To enable direct experimental duplication of the inflight heat flux distribution on supersonic and hypersonic vehicles, an aerodynamic heating scaling technique has been developed. The scaling technique is based on the analytical equations for convective heat transfer for laminar and turbulent boundary layers that follow from applying the...

"BLAST": A compilation of codes for the numerical simulation of the gas dynamics of explosions

The availability of powerful computers these days increasingly enables the use of CFD for the numerical simulation of explosion phenomena. The BLAST software consists of a compilation of codes for the numerical simulation of the gas dynamics of explosions. Each individual code has been tailored to a specific application. After a brief...

Condensed phase decomposition and gas phase combustion of hydrazinium nitroformate

This paper presents the results of a series of experiments on the condensed phase decomposition and the gas phase combustion of hydrazinium nitroformate (HNF). The experiments include SEM analysis of quenched samples that showed evidence of the formation of a foam layer. FTIR spectrometry and mass spectrometry provide details on species...

The fluid flow consequences of CO2 migration from 1000 to 600 metres upon passing the critical conditions of CO2

The minimum injection depth for the storage of CO2 is normally set at 800 metres. At and beyond this depth in the subsurface conditions exist where CO2 is in a so-called critical state. The supercritical CO2 has a viscosity comparable to that of a normal gas and a liquid-like density, Due to the high density of the supercritical CO2, storing the...

Degassing of 3H/3He, CFCs and SF6 by denitrification: Measurements and two-phase transport simulations

The production of N2 gas by denitrification may lead to the appearance of a gas phase below the water table prohibiting the conservative transport of tracer gases required for groundwater dating. We used a two-phase flow and transport model (STOMP) to study the reliability of 3H/3He, CFCs and SF6 as groundwater age tracers under agricultural...

An investigation into the need of a dynamic coupled well-reservoir simulator

Within the research framework of the "Integrated System Approach Petroleum Production" (ISAPP) knowledge center of TNO, TU Delft and Shell, the necessity of taking the interaction between dynamic reservoir and dynamic well behavior into account when optimizing a producing asset is investigated. To simulate dynamic phenomena in the well and in...

BLEVE blast by expansion-controlled evaporation

This report presents a new method to calculate the blast effects originating from an exploding vessel of liquefied gas. Adequate blast calculation requires full knowledge of the blast source characteristics, that is, the release and subsequent evaporation rate of the flashing liquid. Because the conditions that allow explosive evaporation are...

Evaluation of an indoor rocket test stand