eprintid: 3494
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/34/94
datestamp: 2023-11-09 15:51:45
lastmod: 2023-11-09 15:51:45
status_changed: 2023-11-09 15:46:57
type: article
metadata_visibility: show
creators_name: Haza, Z.F.
creators_name: Harahap, I.S.H.
creators_name: Dakssa, L.M.
title: Experimental studies of the flow-front and drag forces exerted by subaqueous mudflow on inclined base
ispublished: pub
keywords: damage; drag; experimental study; flow velocity; kaolin; laboratory method; mudflow; Reynolds number; submarine landslide; submarine pipeline; subsea production system
note: cited By 24
abstract: Submarine slides are one of the most complex geotechnical problems causing serious damages to the seabed environment. Damages may lead to imminent destruction of offshore facilities such as platform and subsea pipeline. Mud sediment was the most susceptible of subsea material involved in the event. The completeness of field investigation is very limited; therefore, laboratory experiment is implemented in view of modeling the dynamics movement at the time of submarine slides occurs. The current experiment was conducted by generating the mudflow in water ambient over an inclined base to observe the flow-front structures of the mudflow. As facility to investigate the drag force exerted by mudflow, additional pipe model was positioned at certain flow distance. Mud models were prepared from mixtures of 10-35  by weight of kaolin and water. Mudflow observations were limited to 3.5-m run-out distance with an exemption for 35  KCC since this percentage stopped flow at 2.3-m flow distance. The role analysis of destructive flow was developed by the determination of drag force coefficient exerted by mudflow incorporating the Reynolds number. Velocity analysis indicates that all flows were defined as initial flow since they have only one phase of slumping phase. With respect to head-flow height and densimetric Froude number, the general form of velocity propagation formula provided the satisfactorily results in tracing mudflow velocity observation of laboratory experiment. Furthermore, the higher percentage of KCC exerted the higher drag force than the lower one. © 2013 Springer Science+Business Media Dordrecht.
date: 2013
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84881050727&doi=10.1007%2fs11069-013-0643-9&partnerID=40&md5=bf8476e1129d8ef92401e9bec9637d1b
id_number: 10.1007/s11069-013-0643-9
full_text_status: none
publication: Natural Hazards
volume: 68
number: 2
pagerange: 587-611
refereed: TRUE
issn: 0921030X
citation:   Haza, Z.F. and Harahap, I.S.H. and Dakssa, L.M.  (2013) Experimental studies of the flow-front and drag forces exerted by subaqueous mudflow on inclined base.  Natural Hazards, 68 (2).  pp. 587-611.  ISSN 0921030X