CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Main CFD Forum

Lead Core dive curve explanation?

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Display Modes
Old   August 27, 2006, 17:44
Default Lead Core dive curve explanation?
  #1
Gus Pratte
Guest
 
Posts: n/a
Setting the stage. I'm a freshwater recreational fisherman (with limited technical background) and we use a lead core line to get the fishing lure down to where the fish are. Problem; the lead is 0.02 dia. and is incased with a woven fiber that makes a total dia. of 0.03. The weight of the lead core is 0.75 oz per 10 yrds. The lead core sinks at a rate of 7 ft. for every 10 yrds. up to 70 yrds paid out, then the rate decreases, the final value of the sinking rate is 6 ft for 100 yrds paid out at a forward constant speed of 2 mph. At 70 yrds and greater the dive curve goes asymptotic. Question: it would appear that the drag factor is uniform to 70 yrds and increases after that, is that due to the forces of water pressure at 49 ft range and greater is creating additional drag on the lead core that is greater and increasing, than the force of the weight of the lead core which is constant due to the forward speed of the boat? Question #2: knowing the dive curve for 2 mph, does the following relationship apply for different speeds; the dive curve at X speed can be predicted by the premise that the force on the lead core has the relationship of the square of the speed? Thank You Gus

  Reply With Quote

Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
solving a conduction problem in FLUENT using UDF Avin2407 Fluent UDF and Scheme Programming 1 March 13, 2015 03:02
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 06:36
block-structured mesh for t-junction Robert@cfd ANSYS Meshing & Geometry 20 November 11, 2011 05:59
[ICEM] Problems with coedge curves and surfaces tommymoose ANSYS Meshing & Geometry 0 August 5, 2011 16:02
CFX4.3 -build analysis form Chie Min CFX 5 July 12, 2001 23:19


All times are GMT -4. The time now is 02:34.