| contributor author | Makoto Higashino | |
| contributor author | Heinz G. Stefan | |
| date accessioned | 2017-05-08T21:48:20Z | |
| date available | 2017-05-08T21:48:20Z | |
| date copyright | March 2005 | |
| date issued | 2005 | |
| identifier other | %28asce%290733-9372%282005%29131%3A3%28350%29.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/62864 | |
| description abstract | A model of sedimentary oxygen demand (SOD) for a sediment bed of finite length is presented. The responses of diffusive oxygen transfer in turbulent flow above the sediment surface and of microbial activity inside the sediment to a developing diffusive boundary layer are modeled numerically. The developing diffusive boundary layer above the sediment/water interface is modeled based on shear velocity and turbulent boundary layer concepts, and dissolved oxygen (DO) uptake inside the sediment is modeled as a function of the microbial growth rate. The model predicts that the diffusive boundary layer above the sediment/water interface thickens in flow direction, and that DO penetration depth into the sediment is practically constant over the length of the sediment bed. The effect of the developing diffusive boundary layer on SOD is minor, except at very low shear/flow velocities (shear velocity | |
| publisher | American Society of Civil Engineers | |
| title | Oxygen Demand by a Sediment Bed of Finite Length | |
| type | Journal Paper | |
| journal volume | 131 | |
| journal issue | 3 | |
| journal title | Journal of Environmental Engineering | |
| identifier doi | 10.1061/(ASCE)0733-9372(2005)131:3(350) | |
| tree | Journal of Environmental Engineering:;2005:;Volume ( 131 ):;issue: 003 | |
| contenttype | Fulltext | |
