DESCAR software: environmental consulting

CANARINA:

DESCAR:

Graphs II Algorithms I Algorithms II Algorithms III Algorithms IV Algorithms V Algorithms VI Algorithms VII Pollutants I Pollutants II

The sea I

The sea II

Google maps

GIS

DESCAR software: algorithms IV

2.1 Water is stratified

2.1.1 Multiport diffuser.- We have three different cases:

Case I:

θ >=65º F<=0.1 ó

θ <65º F<=0.36

θ=angle between U_a vector and diffuser.

F=Fraude number F=Ua³ (g’q)^-1

q=Unitary flor rate in the diffuser q=QL_t^-1 (m²/s)

Q=Discharge flow rate (m³/s)

L_t=Diffuser length (m)

S=initial dilution

In such a case, we have the next relationships

S=0.27 U_a H q^-1 F^-1/3

e=0.29H

B=SQ/eU_a

Case II:

25^o=<θ <65º F>0,36 (*)

In such a case, we have the next relationships

S=0.38 U_a H q^-1

B=max[L_tsin θ; 0.93L_t F^-1/3]

e=SQ/BU_a

Case III:

θ <25º 0,36<F=<20

In such a case, we have the next relationships

S=0.294 U_a H q^-1 F^-1/4

B=max[L_tsin θ; 0.93L_t F^-1/3]

e=SQ/BU_a

Case IV:

θ <25º F>20

In such a case, we have the next relationships

S=0.139 U_a H q^-1

B=max[L_tsin θ; 0.93L_t F^-1/3]

e=SQ/BU_a

Case V:

θ >65º F>0,1

In such a case, we have the next relationships

S=0.58 U_a H q^-1

B=max[L_tsin θ; 0,93L_t F^-1/3]

e=SQ/BU_a

From Case II to Case V, and if e>H, we take e=H and S= U_aBH/Q.

2.1.2 Separated ports.- We will solve this case by means of a iterative mathematical method

B=max[L_tsin θ; 0,93L_t F^-1/3]

S=0.089 g’^1/3 (H-e)^5/3 Q_b^-2/3^(***)

e=SQ/BU_a

Q_b= flow rate at each single port(m³/s).

The number of iterations can modify by means of the parameter N_it of the function Calculation parameters of the program.

Increasing N_it value, we increase the numeric convergence but we will need more time of calculation. We should look for an optimized value of N_it.

Single port.- In such a case, we have the next relationships

e=0.15H

S=0.089 g’^1/3 (H-e)^5/3 Q^-2/3

B=SQ/eU_a (*)

However, at high velocity values and if B<=0.3H, the approximation is not correct .

Algorithms I - Algorithms II - Algorithms III - Algorithms IV - Algorithms V - Algorithms VI - Algorithms VII

Canarina Algoritmos Numéricos, S.L.

Environmental software · environmental software solutions

Canary Islands, Spain

e-mail: Contact us

European Union · network on Pollution

Member of MAPO: European network on Marine Pollution.

Project funded by the European Commission

through the 6th Framework Programme for Research and Development

DESCAR: water pollution - Solutions - Advantages - Price - Data I - Data II - Advantages - Temporal average - Import - Commands - Graphs I - Graphs II - Algorithms I - Algorithms II - Algorithms III - Algorithms IV - Algorithms V - Algorithms VI - Algorithms VII - Pollutants I - Pollutants II - The sea I - The sea II - Google maps - GIS

DESCAR software solutions: This application has been used in great number of environmental reports, courses and water pollution studies in the last years. We currently have users in more than 10 countries. Water pollution reports:

Devon - environmental company - environmental engineers -

Lincolnshire - groundwater environmental services - enviro consultant - environmental management systems -

Cumbria - environmental planning consulting -

North Yorkshire - environmental expert - environmental management system -

Suffolk - environmental surveying -

Hampshire - environmental consulting - environmental consulting services -

Cornualles - environmental management consulting -

Aberdeen - environmental assessments - environmental training - environmental planning

Armagh - environmental pollution - environmental impact statement - 14001 consultants -

Bangor - environmental studies - environmental cleanup - sustainable consulting -

Bath - environmental engineering - environmental remediation - sustainability consulting -

Belfast - environmental consulting group - environmental consulting engineers - environmental consulting solutions

Birmingham - environmental site assessment - environmental compliance - ecological consultants -

Bradford - environmental engineer - geotechnical engineer - environmental testing -

Brighton & Hove - environment consultants - environmental engineering consulting - environmental working group -

Bristol - marine environmental consulting - ecological consulting - ecological engineer -

Cambridge - environmental remediation services - environmental health - wetlands -

Nottingham - iso 14001 - environmental risk assessment -

Oxford - environment service - engineering consulting - hazardous waste -

Peterborough - environmental consultants - environmental engineering consultants - environmental management consultants

Plymouth - sustainable consultant - environmental impact assessment - sustainability -

Portsmouth - environmental problems - environmental risk - environmental construction -

Preston - sustainable consultants - groundwater remediation - environmental consultancies -

Ripon - environmental civil engineering - environmental companies - construction consulting

Salford - wastewater treatment - air quality testing - indoor air quality -

Salisbury - consulting engineers - enviro consult - analytical environmental services -

Sheffield - environment services - environmental audit - ecology consultant -

St Albans - ecology consulting - environmental compliance specialist - enviro consultants -

St David's - asbestos - sustainability consultant - environmental site assessments -

Stirling - hazardous materials - environment consultancy - enviro consulting -

Stoke-on-Trent - ecology consultants - environmental contractors - environmental protection -