NDLI: Limits of Existence of a Two-Dimensional Steady-State Structure of a Liquid Film in Combustion-Wave Propagation

Content Provider	Springer Nature Link
Author	Sharypov, O. V. Medvedko, K. A. Fomin, A. V.
Copyright Year	2002
Abstract	A two-dimensional steady-state structure of a film flow of a combustible liquid on a heat-conducting substrate in the case of combustion-wave propagation is considered in the hydrodynamic formulation. The physical mechanism of formation of this structure is analyzed. It is shown that the thermocapillary effect plays an important role. The conclusion is justified that the existence of a two-dimensional regime is possible only for rather low values of the temperature gradient on the film surface. A critical condition is obtained, which determines the transition to a three-dimensional regime. This condition implies that the flow velocity is equal to the velocity induced by the thermocapillary force. If the temperature gradient is higher than a certain critical value, a zone with a reverse flow should appear, in accordance with the two-dimensional model. It is assumed that such a regime cannot exist due to its instability to three-dimensional perturbations. Experiments with a liquid film flowing down due to gravity in the presence of an immovable heat source (without the combustion wave) support the conclusion of the transition to a three-dimensional regular flow structure if the temperature gradient is rather high. The first part of the paper deals with simulation of the film structure for the critical condition satisfied. The second part deals with generalization of the problem to the case of a movable heat source moving with a constant velocity. This formulation of the problem includes the situation with combustion-wave propagation. The mathematical formulation of this problem allows us to assume that the existence of a two-dimensional steady-state regime in this case is limited by the same critical condition. If the temperature gradient on the film surface is higher than the critical value, the two-dimensional steady-state solution does not exist. This concept justified in the present work offers a generic explanation of phenomena observed in liquid films in the presence of local heat sources of various natures.
Starting Page	19
Ending Page	23
Page Count	5
File Format	PDF
ISSN	00105082
Journal	Combustion, Explosion and Shock Waves
Volume Number	38
Issue Number	1
e-ISSN	15738345
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2002-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Mechanics, Fluids, Thermodynamics Mechanics Engineering Vibration, Dynamical Systems, Control Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Chemistry Physics and Astronomy Fuel Technology Chemical Engineering Energy Engineering and Power Technology

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Combustion limits of liquid monofuels

Effect of heating on the structure and existence limits of the combustion front in two-layer specimens

Mechanism of Upper Temperature Limits in a Wave of Filtration Combustion of Gases

Diffusion combustion of a liquid fuel film on a metal substrate

Ionization in a Combustion Wave

Structure of the Reaction Zone of a Steady Detonation Wave in Dinitrodiazapentane

Filtration Combustion of Liquid Monofuels

Free-convective regime of flame spread over a fuel film on a substrate

Combustion-Wave Propagation and Phase-Formation Mechanism in the “Molybdenum–Carbon-Active Additive” System

Limits of Existence of a Two-Dimensional Steady-State Structure of a Liquid Film in Combustion-Wave Propagation

Similar Documents

Combustion limits of liquid monofuels

Effect of heating on the structure and existence limits of the combustion front in two-layer specimens

Mechanism of Upper Temperature Limits in a Wave of Filtration Combustion of Gases

Diffusion combustion of a liquid fuel film on a metal substrate

Ionization in a Combustion Wave

Structure of the Reaction Zone of a Steady Detonation Wave in Dinitrodiazapentane

Filtration Combustion of Liquid Monofuels

Free-convective regime of flame spread over a fuel film on a substrate

Combustion-Wave Propagation and Phase-Formation Mechanism in the “Molybdenum–Carbon-Active Additive” System

Limits of Existence of a Two-Dimensional Steady-State Structure of a Liquid Film in Combustion-Wave Propagation