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Estimation of orifice flow rates for flooding of damaged ships

Estimation of orifice flow rates for flooding of damaged ships
Estimation of orifice flow rates for flooding of damaged ships
This paper concentrates on the modelling of compartment flooding rates following the occurrence of damage. Typical state of the art flooding models use Torricelli.s formula to calculate flooding rates using a constant co-efficient of discharge (Cd). Based on Bernoulli.s theorem, turbulence and viscosity effects are not included using a Cd independent of damage shape or size. Previous work indicates that this assumption over-simplifies the problem to an extent where the flooding rates used for calculation are in error. Simple validation of a tool to assess flow rates for emergency response is included.
Wood, C.D.
558991bc-f8f2-4ef2-86db-a74732f2762a
Sobey, A.J.
e850606f-aa79-4c99-8682-2cfffda3cd28
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
James, P.
e8c9d2fb-933a-4890-91f9-ec02b0811971
Wood, C.D.
558991bc-f8f2-4ef2-86db-a74732f2762a
Sobey, A.J.
e850606f-aa79-4c99-8682-2cfffda3cd28
Hudson, D.A.
3814e08b-1993-4e78-b5a4-2598c40af8e7
Tan, M.
4d02e6ad-7915-491c-99cc-a1c85348267c
James, P.
e8c9d2fb-933a-4890-91f9-ec02b0811971

(2011) Estimation of orifice flow rates for flooding of damaged ships. RINA International Conference on The Damaged Ship, United Kingdom. 26 - 27 Jan 2011. 9 pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper concentrates on the modelling of compartment flooding rates following the occurrence of damage. Typical state of the art flooding models use Torricelli.s formula to calculate flooding rates using a constant co-efficient of discharge (Cd). Based on Bernoulli.s theorem, turbulence and viscosity effects are not included using a Cd independent of damage shape or size. Previous work indicates that this assumption over-simplifies the problem to an extent where the flooding rates used for calculation are in error. Simple validation of a tool to assess flow rates for emergency response is included.

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More information

e-pub ahead of print date: January 2011
Venue - Dates: RINA International Conference on The Damaged Ship, United Kingdom, 2011-01-26 - 2011-01-27
Organisations: Fluid Structure Interactions Group

Identifiers

Local EPrints ID: 345880
URI: http://eprints.soton.ac.uk/id/eprint/345880
PURE UUID: ad6e200c-389f-4f8f-b9b2-af89c59b9719
ORCID for A.J. Sobey: ORCID iD orcid.org/0000-0001-6880-8338
ORCID for D.A. Hudson: ORCID iD orcid.org/0000-0002-2012-6255

Catalogue record

Date deposited: 04 Dec 2012 17:52
Last modified: 06 Mar 2019 01:33

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Contributors

Author: C.D. Wood
Author: A.J. Sobey ORCID iD
Author: D.A. Hudson ORCID iD
Author: M. Tan
Author: P. James

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