# Wave runup

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 September 17, 2020, 15:30 Wave runup #1 New Member   Join Date: Sep 2020 Posts: 25 Rep Power: 5 Hii There, I have been practicing REEF3D for some time (running and modifying tutorial cases); But, now i need to focus on some specific cases of my interest, one of them is numerically studying the wave run-up on beaches. But, I am having a very hard time in measuring the wave runup. If any of you guys have some idea about the solution, please help me. Thanks

 November 3, 2020, 09:00 Wave Runup / REEF3D #2 Super Moderator   Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 389 Rep Power: 18 You could use the wsfline print out, see option P 52. Hans Saeed.Rad likes this.

 March 17, 2021, 04:37 #3 Senior Member   Arun Kamath Join Date: Nov 2014 Location: Trondheim, Norway Posts: 265 Rep Power: 13 Would be also interesting to see if the discharge gauge P 67 (generally used for open channel flow simulations) can provide a path to calculate the volume of overtopping past a point? __________________ Arun X years with REEF3D

 March 17, 2021, 07:31 #4 Super Moderator   Hans Bihs Join Date: Jun 2009 Location: Trondheim, Norway Posts: 389 Rep Power: 18 Yes, P 67 should in theory work for this. Then V=Q*dt, where Q comes from P 67. __________________ Hans Bihs Team REEF3D www.reef3d.com

 March 17, 2021, 07:36 #5 Senior Member   Arun Kamath Join Date: Nov 2014 Location: Trondheim, Norway Posts: 265 Rep Power: 13 Yes, but in addition, for wave runup, I guess it should be integrated over the entire duration of the simulation, as unlike in open channel flow in steady state, the discharge gauges will measure both +ve and -ve values. The net sum over the simulation is then the net run up/ overtopping (Q in Hans' post) over the duration of the simulation (dt above) to get the discharge volume over the length of the simulation and then derive the discharge per unit time. __________________ Arun X years with REEF3D

 Tags cfd, reef3d, wave-runup