Wind Tunnel and Threshold Wind Velocity Simulation in Different Land Units of sand and dust storm sources

Abstract

ust :Aims investigation This .Province Khuzestan the in challenge significant a poses it ,such As .regions in erodibility soil and velocity threshold the estimate to aims study the ,Additionally .unitsland on based sources dust of distribution spatial the about more understand to seeks .tunnel wind a using sources Hendijan and ,Omidiyeh ,Mahshahr the ,regions plain and flat in areas relevant the of location the to Due :Methods & Materials the in ,Thus .types land on is research this of basis the generally and samples of selection tunnel wind the to transferred and sample soil surface the as selected were points ten ,unitland each of average the taking by ,Then .selected were points 32 ,area study mentioned were soil the of erodibility the and threshold erosion the of velocity the ,Then .laboratory .(min (two of period a for) -1s.m (30 and 25, 20, 15, of speeds at measured that showed area studied the in estimation threshold erosion wind of results The :Findings ranged rate erosion the and ,)-1s.m (17-6 from varied threshold erosion wind of velocity the velocity threshold lowest The .)-1s.m(20 of velocity wind a at) -1min-2.m.gr (2200 to 30 from the of northwest the in located ,Mahshahr-Jarahi of plains sedimentary the in located is Hendijan of Fans Alluvial and alluviums the in was erosion of amount highest the and ,center .center the of southeast the in located ,anticline significant as plains alluvial and ,fans alluvial ,alluvium of substantial the reveals and unitsland on based potential emission dust of factor primary the considers study This :Conclusion .area study the in emissions dust to contributing sediment erodible the to contributors Hendijan of foothills eastern the in rivers ephemeral by deposited fans alluvial and Alluviums early stabilized be must and erodible highly are that marl and sediments grained-fine contain ,theory Chepil the by conducted tests granulation of results the to according ,Furthermore .on ,high was Province Khuzestan of sources dust the from collected samples all of erodibility the ,units-land on based sources dust locating By .erosion wind to sensitive were samples all and wind against methods stabilization land effective and accurate more implement can we theory Chipel the using ,Furthermore .plains alluvial and ,fans alluvial ,alluvium in erosion .