Numerical Computation of Two-Dimensional Unsteady Detonation Waves in High Energy Solids

We are concerned with theoretical modelling of unsteady, two-dimensional detonation waves in high energy solids. A mathematical model and a numerical method to solve the associated hyperbolic system of equations are presented. The model consists of the Euler equations augmented bby extra conservation laws and source terms to accoxint for...

Numerical studies of a detonation analogue

Starting in 1946 as the College of Aeronautics, the Cranfield Institute of Technology was granted university status in 1969. In 1993 it changed its name to Cranfield University.

Dynamic Behaviour of Combustible Gases Between a Shock Wave and a Following Flame

The paper describes events in time intervals up to the appearance of re-ignition of a combustible gas in the induction domain between a strong precursor shock wave and a following premixed flame. The re-ignition process takes place immediately ahead of the flame, and involves both local temperature and local pressure increases which are strongly...

Quasi-steady flames on an evolving atmosphere

Theoretical studies of pre-mixed flames are complicated by the fact that the atmosphere ahead of the combustion wave is essentially in a state of disequilibrium. Various devices have been proposed to overcome this difficulty and this paper proposes, and examines, a model that admits from the outset that the basic atmosphere will be undergoing...

A review of theories currently being used to model steady plane flames on flame-holders

The stability of burner flames for arbitrary Lewis number is considered on the basis of large activation energy modelling. Previous leading-order-only approaches are now extended to second order in 0,-1 (the inverse activation energy). The assumption that the unsteady perturbations are small (order E) means that one must discuss the...

Second order theory of unsteady burner-anchored flames with arbitrary Lewis Number

Three theoretical models of plane flames burning on a cooled porous-plug type of flame-holder are reviewed and compared with experimentally observed relationships between stand-off distance, flame speed and temperature. It is shown that for most practical burners their conductance is large and that for near adiabatic conditions, the order of the...

Non-Steady Gas Dynamic Effects in the Induction Domain Behind a Strong Shock Wave

Processes in the region between a driving piston or contact surface and a strong shock wave (e.g. Mach number > 1.5) can be modelled theoretically as relatively small-perturbation events. The combustion reaction is assumed to be of simple irreversible Arrhenius type; perturbations are then of the order of the dimensionless inverse activation...

On a first-order wave theory for a relaxing gas flow

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

Some remarks on the treatment of fully-supersonic oblique flames as gas-dynamical discontinuities

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

Green's functions and the non-equilibrium equation with applications to non-equilibrium free streams

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

Reaction-resisted shock fronts

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

Heat conduction through a polyatomic gas

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

An improved radar equation

Based on a new "detection-criterion" and the use of anormal approximation, an analytic form for integration loss is obtained. This is checked against known accurate values and is adjusted to give good results. This then permits the extension of the radar equation to include integration loss.

Heat conduction through a gas with one inert internal mode

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

An elementary study of gas injection and sublimation into a simple shear layer

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

On the sudden contact between a hot gas and a cold solid

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.

The flow of chemically reacting gas mixtures

The College of Aeronautics was founded in 1946 and was granted university status in 1969 becoming the Cranfield Institute of Technology. In 1993 it changed its name to Cranfield University.