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EFDC Explorer 7 Overview part 1. Overview of EFEC_Explorer7 Capabilities and Features. By Paul M. Craig ( pmcraig@da-intl.biz ) Dynamic Solutions – International, LLC May 2012. Agenda. Overview of EFDC introduction to EFDC Model Model Architecture EFDC_DSI Enhancements

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overview of efec explorer7 capabilities and features
Overview ofEFEC_Explorer7Capabilities and Features


Paul M. Craig (pmcraig@da-intl.biz)

Dynamic Solutions – International, LLC

May 2012

  • Overview of EFDC
  • introduction to EFDC Model
  • Model Architecture
  • EFDC_DSI Enhancements
  • Overview or EFDC_Explorer7
  • What’s New in EFDC_Explorer Ver7
  • Model Setup
  • Visualizations
  • Overview of Constituent Sub-models
  • EFDC 개요
  • EFDC 모델 소개
  • 모델 구조
  • EFDC_DSI 향상
  • 개요 또는 EFDC_Explorer7
  • EFDC_Explorer Ver7의 새로운 기능
  • 모델 설정
  • 시각화
  • 구성성분 하위-모델의 개요
the efdc model
The EFDC Model
  • The Environmental Fluid Dynamics Code (EFDC) is a general-purpose modeling package
  • Simulates 1,2 & 3-D flow, transport, and biogeochemical processes in surface water systems (rivers, streams, lakes, estuaries, coastal waters and open ocean)
  • EFDC model was originally developed at the Virginia Institute of Marine Science
  • EFDC is a public domain model
  • EFDC_DSI isDynamic Solutions-International’s enhanced and optimized version
  • 환경 유체 역학 코드(EFDC)은 수면 시스템(강, 하천, 호수, 하구, 연안 바다와 대양)의 1,2 및 3-D 흐름, 이동, 그리고 생물지구과학적 과정을 모의 실험하는 다목적 모델링 패키지다.
  • EFDC 모델은 원래 해양과학 버지니아 연구소에서 개발되었다.
  • EFDC는 공공 영역의 모형이다.
  • EFDC_DSI는 동적 용액-국제적의 강화 및 최적화된 버전이다.
efdc structure
EFDC Structure


Dye/Age or Water



Water Quality

Lagrangian Particle


  • EFDC’s hydrodynamics are based on the 3D hydrostatic equations formulated in curvilinear-orthogonal horizontal coordinates and a sigma or stretched vertical coordinate system.
  • EFDC is a coupled model eliminating model linkage issues


(E, u, v, w, mixing)



Near Field Plume



염료/나이 또는 물




Lagrangian 입자


  • EFDC의 유체역학은 직각 곡선 수평 좌표와 시그마나 수직으로 뻗은 좌표 시스템에서 형성화된 3D 수압 방정식을 기반으로 한다.
  • EFDC는 모델 연결 문제를 제거하는 결합된 모델이다.


(E, u, v, w, mixing)



기둥 영역 근처

efdc features
EFDC Features
  • Wetting & drying
  • Vegetation resistance
  • Boundary Conditions:

- Flow (in and/ or out)

- Open/Pressure

- Hydraulic structures

- Withdrawal/Return

- Wind speed/direction

- Multiple Stations

- Atmospheric Conditions (heat transport)

- Multiple Stations

  • 습윤 및 건조
  • 식물 저항
  • 경계 조건 :

- 흐름( 유입/ 또는 유출)

- 개방/압력

- 유체 구조

- 회수/반품

- 바람의 속도/방향

- 다중 지역

- 대기 조건(열 이동)

- 다중 지역

efdc dsi enhancements
EFDC_DSI Enhancements

Dynamic Solutions-International(DSI) has developed an enhanced version the code(EFDC_DSI) which includes:

  • Lagrangian Particle Tracking
  • Dynamic Memory Allocation
  • Improved/Simplified External Wave Model Linkage
  • Internal Windwave Generation
  • Improved Water Quality Model with Dynamic Timestepping
  • Rooted Plant and Epiphyte Model(RPEM)
  • Age of Water/Residence Times
  • OpenMP-Multi-Threading
efdc dsi

동적 용액-국제(DSI)는 다음을 포함하는 향상된 버전 코드(EFDC_DSI)를 개발했다: Lagrangian입자 추적

  • 동적 메모리 할당
  • 개선/단순화된 외부 파동 모델 연계
  • 내부 풍랑 생성
  • 동적 단계적 시간에 따른 수질 개선 모델
  • 뿌리 식물 및 착생 식물 모델(RPEM)
  • 물/저항 시간의 기간
  • OpenMP-멀티-스레딩
what is efdc explorer
What is EFDC_Explorer?
  • EFDC_Explorer(EE) is a pre-and post-processing tool developed by DSI for two versions of EFDC:

- EFDC_DSI (Primary model)

- EFDC_GVC/EFDC/EPA(Legacy applications)

  • EE7 significantly streamlines the modeling process:

- model Input Preparation

- Use of 2D GIS type information to define and edit model inputs

- Context Sensitive Point & Click access to cell propertise and BC assignments

  • EE7 provides a a significantly enhanced yet simpler interface than previous versions of EE
efdc explorer
  • EFDC_Explorer(EE)는 EFDC의 두 가지 버전 DSI에서 개발 한 사전 및 사후 처리 도구입니다 :

- EFDC_DSI (이전모델)

- EFDC_GVC / EFDC / EPA (기존응용 프로그램)

  • EE7 크게 모델링 프로세스를 간소화 :

- 모델 입력 준비

- 모델 입력을 정의하고 편집 할 2D GIS 형식 정보 사용

- 상황에 맞는 포인트 및 셀의 성질과 BC 배치에 대한 액세스(접근)를 클릭

  • EE7은 EE의 이전 버전보다 크게 향상된 아직 간단한 인터페이스를 제공합니다