User's guide for a general purpose dam-break flood simulation model (K-634)

1981 ◽  
Keyword(s):  
Simulation Model ◽  
General Purpose ◽  
Dam Break ◽  
Flood Simulation

Multi-scale flooding hazards evaluation using a nested flood simulation model: Case study of Jamuna River, Bangladesh

2021 ◽  
pp. 1-38
Author(s):  
Masakazu Hashimoto ◽  
Kenji Kawaike ◽  
Tomonori Deguchi ◽  
Shammi Haque ◽  
Arpan Paul ◽  
...  
Keyword(s):  
Simulation Model ◽  
Model Case ◽  
Flood Simulation ◽  
Multi Scale ◽  
Flooding Hazards

scholarly journals An Approach to the Construction of a Network Processing Unit

2019 ◽  
Vol 26 (1) ◽  
pp. 39-62
Author(s):  
Stanislav O. Bezzubtsev ◽  
Vyacheslav V. Vasin ◽  
Dmitry Yu. Volkanov ◽  
Shynar R. Zhailauova ◽  
Vladislav A. Miroshnik ◽  
...  
Keyword(s):  
Simulation Model ◽  
General Purpose ◽  
Network Processor ◽  
Processing Unit ◽  
Use Case ◽  
General Purpose Processor ◽  
Software Products ◽  
Processor Architectures ◽  
Advantages And Disadvantages ◽  
Processor Unit

The paper proposes the architecture and basic requirements for a network processor for OpenFlow switches of software-defined networks. An analysis of the architectures of well-known network processors is presented − NP-5 from EZchip (now Mellanox) and Tofino from Barefoot Networks. The advantages and disadvantages of two different versions of network processor architectures are considered: pipeline-based architecture, the stages of which are represented by a set of general-purpose processor cores, and pipeline-based architecture whose stages correspond to cores specialized for specific packet processing operations. Based on a dedicated set of the most common use case scenarios, a new architecture of the network processor unit (NPU) with functionally specialized pipeline stages was proposed. The article presents a description of the simulation model of the NPU of the proposed architecture. The simulation model of the network processor is implemented in C ++ languages using SystemC, the open-source C++ library. For the functional testing of the obtained NPU model, the described use case scenarios were implemented in C. In order to evaluate the performance of the proposed NPU architecture a set of software products developed by KM211 company and the KMX32 family of microcontrollers were used. Evaluation of NPU performance was made on the basis of a simulation model. Estimates of the processing time of one packet and the average throughput of the NPU model for each scenario are obtained.

Development of 1D–2D Urban Flood Simulation Model Based on Modified Cellular Automata Approach

2021 ◽  
Vol 26 (2) ◽  
pp. 04020065
Author(s):  
Hamed Tavakolifar ◽  
Hossein Abbasizadeh ◽  
Sara Nazif ◽  
Ebrahim Shahghasemi
Keyword(s):  
Cellular Automata ◽  
Simulation Model ◽  
Flood Simulation ◽  
Urban Flood ◽  
Model Based

scholarly journals FLOOD EVACUATION ROUTES MAPPING BASED ON DERIVED- FLOOD IMPACT ANALYSIS FROM LANDSAT 8 IMAGERY USING NETWORK ANALYST METHOD

2019 ◽  
Vol XLII-3/W8 ◽  
pp. 455-460
Author(s):  
N. Watik ◽  
L. M. Jaelani
Keyword(s):  
Simulation Model ◽  
Disaster Response ◽  
Impact Analysis ◽  
Landsat 8 ◽  
Flood Simulation ◽  
Network Analyst ◽  
Before And After ◽  
Evacuation Routes ◽  
Evacuation Route ◽  
National Disaster

<p><strong>Abstract.</strong> Reported by National Disaster Response Agency of Indonesia (BPBD) as many as 94 dies, 149 injured, and more than 88 thousands homeless caused by floods in 2018. Besides bringing casualties to people and environment, the floods also affect the damages to transportation infrastructures in which vital to disaster emergency response operation e.g. evacuation process. Due to the complex impact of current disaster, the demands of providing a short-term response increases accordingly. Therefore, this research proposes a prototype of flood evacuation route utilizing network analyst method. The network analyst method particularly focus on finding alternative route based on time and distance. This research uses a flood simulation model derived from Landsat 8 imagery and terrain data. Subsequently, the simulation model divides the flood severity based on the depth which consist of < 0.3 m (slight), 0.3-0.5 m (moderate), and > 0.5 m (serious) in order to generate an impact analysis regarding the estimation of damages and casualties. In order to resemble the real situation of flood, barriers (e.g. flood area) are applied into the finding evacuation route procedure. Thereby, the estimated evacuation route can be executed considering the safest and fastest way. Moreover, some comparisons between before and after flood are conducted in order to know the effectiveness of evacuation routes. By such comparison proves that network analyst enables to support disaster management operation with respect to handling the evacuation procedure.</p>

scholarly journals SPATIO-TEMPORAL PROCESS SIMULATION OF DAM-BREAK FLOOD BASED ON SPH

2018 ◽  
Vol XLII-3 ◽  
pp. 1721-1727
Author(s):  
H. Wang ◽  
F. Ye ◽  
S. Ouyang ◽  
Z. Li
Keyword(s):  
Process Simulation ◽  
Simulation Method ◽  
Dam Break ◽  
Geographical Information ◽  
Smooth Particle Hydrodynamics ◽  
Flood Simulation ◽  
Temporal Process ◽  
Particle Hydrodynamics ◽  
Research Problems ◽  
Spatio Temporal

On the basis of introducing the SPH (Smooth Particle Hydrodynamics) simulation method, the key research problems were given solutions in this paper, which ere the spatial scale and temporal scale adapting to the GIS(Geographical Information System) application, the boundary condition equations combined with the underlying surface, and the kernel function and parameters applicable to dam-break flood simulation. In this regards, a calculation method of spatio-temporal process emulation with elaborate particles for dam-break flood was proposed. Moreover the spatio-temporal process was dynamic simulated by using GIS modelling and visualization. The results show that the method gets more information, objectiveness and real situations.

Sign in / Sign up

Export Citation Format

Share Document